Chemicals & Plastics

Fine chemical products are specialty chemical products that are manufactured in small quantities and have a high level of purity. They are used as intermediates or building blocks in various industries such as pharmaceuticals, agrochemicals, electronics, and personal care. Fine chemicals and solvents often have specific properties, such as reactivity, that make them suitable for specific applications, and they are typically more expensive than commodity chemicals. Our approach to fine and specialty chemical distribution at TOPFINE is to be your most dependable and resourceful partner. We take pleasure in being organic fine chemicals manufacturing experts. TYPES OF FINE CHEMICALS Paint & Coating Additives Food Additives & Feed Additives Pharmaceutical Intermediates Aromatic Hydrocarbons Base Raw Material FINE CHEMICAL PRODUCTS FEATURES 1 Industrial fine chemicals products are typically high-purity, specialty chemicals that are used in a wide range of industries, including pharmaceuticals, electronics, cosmetics, and food and beverage production. Here are some common features of fine chemical products: High purity: Fine chemical products are typically very pure, with impurity levels of less than 1% or even less than 0.1%. This high level of purity ensures that the products meet strict quality standards and are suitable for use in sensitive applications. Tailored properties: Fine chemical products can be tailored to have specific properties that make them ideal for particular applications. For example, a fine chemical used in pharmaceuticals might need to have a specific molecular weight, solubility, or reaction rate. Precise composition: Fine chemical products are typically manufactured using precise, controlled processes that ensure consistent composition and quality from batch to batch. Small-scale production: Fine chemical products are often produced in smaller quantities than commodity chemicals, as they are typically used in specialized applications. This allows for greater control over the manufacturing process and ensures product consistency. 2 High value: Fine chemical products are often high-value products, as they are used in specialized applications where quality and performance are critical. This means that they are typically more expensive than commodity chemicals. Specialty applications: Fine chemical products are used in a wide range of specialty applications, including pharmaceuticals, electronics, coatings, and flavors and fragrances. They are often used in high-tech, high-value industries where precision and performance are critical. Regulatory compliance: Fine chemical products are subject to strict regulatory requirements, particularly in the pharmaceutical and food industries. Manufacturers of fine chemical products must comply with these regulations and provide the necessary documentation and certifications to ensure product safety and quality. In summary, fine chemical products are typically high-purity, specialty chemicals that are tailored to have specific properties for use in specialized applications. They are produced using precise, controlled processes and are subject to strict regulatory requirements to ensure product safety and quality. WHAT ARE INDUSTRIAL FINE CHEMICALS USED FOR?  As one of the most professional fine chemical companies in China, TOPFINE mainly deals with SPRAYLAT brand conductive coatings of PPG, mainly used in electromagnetic interference (EMI), radio frequency (RFI) protection, high- performance electrostatic discharge (ESD) and radar protection in consumer electronics, aerospace, automotive industry, military, medical, base station rooms, etc. TOPFINE is the agent of COSCO Kansai KANSAI coating products, mainly used for silicone high temperature resistant paint, water-based anti-corrosion paint, fluorocarbon coating, anti-static paint for storage tanks, self-cleaning functional coatings, and other products. Fine chemical industries applications mainly include bridges, port machinery, shipyards, storage tanks anti- corrosion, high temperature resistance, and other occasions. FINE CHEMICAL MANUFACTURING CHALLENGES & SOLUTIONS Fine chemical manufacturing involves the production of high-purity, high- quality chemicals used in various industries such as pharmaceuticals, cosmetics, and electronics. Here are some common challenges faced in fine chemical manufacturing and possible solutions: Contamination: Fine chemicals must be produced in a clean and controlled environment to prevent contamination, which can affect their purity and quality. Solutions include implementing proper cleaning procedures, using high- quality raw materials, and maintaining proper ventilation and air filtration systems. Cost: Fine chemical manufacturing can be expensive due to the high cost of raw materials and the need for specialized equipment and processes. Solutions include optimizing production processes to minimize waste and reduce energy consumption, utilizing automation to increase efficiency, and exploring alternative raw materials or production methods. Safety: Fine chemicals can be hazardous, and proper safety measures must be in place to protect workers and the environment. Solutions include implementing safety protocols and training programs, conducting regular safety audits, and using appropriate personal protective equipment. Regulatory compliance: Fine chemical manufacturing is subject to strict regulations governing product quality, safety, and environmental impact. Solutions include keeping up-to-date with regulatory requirements, implementing quality control measures, and maintaining detailed records to ensure compliance. Scale-up: Scaling up production of bulk and fine chemicals can be challenging due to the need for specialized equipment and processes. Solutions include carefully planning the scale-up process, conducting pilot tests to identify potential issues, and collaborating with experienced partners or suppliers. In summary, fine chemical manufacturing faces challenges related to contamination, cost, safety, regulatory compliance, and scale-up. However, these challenges can be addressed through careful planning, optimization of processes, use of appropriate equipment and raw materials, and implementation of safety and quality control measures. TO EXPLORE MORE ABOUT FINE CHEMICALS LIST 1,2-Dichloropropane Sodium Gluconate Thiophene Sodium Bisulfite

Minimum Order: 1 bags

Basic Orange 2 ( Chrysodine ) Color Index: C.I.Basic Orange 2 (11270) Molecular Formula: C12H13CIN4 CAS NO: 532-82-1 Basic Orange Application: Basic orange is used for dyeing of chemical fiber and direct printing of fabrics, also dyeing of silk, wool, cotton fibers, with less fastness compared with basic green. Basic orange is also used for dyeing of leather, paper, feather, grass, wood, bamboo, etc. Fabric Dyes Chrysodine Basic Orange 2 Large Crystals Dyes C.I. Name: Basic Orange 2 Other Name: Chrysodine CAS No.: 532-82-1 Strength: 100% Appearance: Brown Red Crystals Molecular Formula: C12H13CIN4 In the dyeing fastness of cotton fabric: Accord with a standard grade. Solubleness: Soluble. Packing: Normally packed in 25kgs fiber drum or iron drum or customized. Usage: Ink dyestuffs, leather dyestuffs, paint dyestuffs, paper dyestuffs, plastic dyestuffs, textile dyestuffs.

Basic blue 9, is also known as Methylene Blue, Methylene blue BB, or methyl blue. It is a golden red flash or flash golden bronze powder. Soluble in water, slightly soluble in alcohol, blue. Case of concentrated sulfuric acid is yellow green, blue diluted. In concentrated nitric acid in the Gray-green, added sodium hydroxide solution is purple and dark purple precipitate, add hydrochloric acid unchanged. C.I.: 52015 CAS NO. : 61-73-4 Molecular Formula: C16H18ClN3S Molecular Weight: 319.858 Strength: 100% Packing: Packed in 25kgs iron drums, plastic bags. Application Instructions: Basic blue 9 is used for silk, wool dyeing, the light fastness is poor; When used as tannin mordant dyeing for cotton dyeing, light fastness is 3; Basic blue 9 or methyl blue, was previously used for the direct printing of cotton, but now, it is rarely used in this way; Other uses including pigment for the paper, bamboo, wood color, for the manufacture of ink and color lake pigments and biological, bacteriological stain; Also used as solvent dyes.

Basic Orange 2 ( Chrysodine ) Color Index: C.I.Basic Orange 2 (11270) Molecular Formula: C12H13CIN4 CAS NO: 532-82-1 Basic Orange Application: Basic orange is used for dyeing of chemical fiber and direct printing of fabrics, also dyeing of silk, wool, cotton fibers, with less fastness compared with basic green. Basic orange is also used for dyeing of leather, paper, feather, grass, wood, bamboo, etc.

Flexible Flame Retardant Heat PE Shrink Tube For Wires With Logo Printing Halogen Free Flame-retardant Heat Shrinkable Tube Model Number: HS-125H Working temperature: -45ºC ~ 125ºC Structure Halogen free flame-retardant heat shrinkable tube is made of eco-friendly cross- linking polyolefin material under irradiation. It has environment-friendly, flexible, flame retardant, quick shrink and stable performances. Also, it has electrical insulation, welding point anticorrosion and antirust and mechanical performances. It has passed UL, RoHS, Reach certifications for 300V and 600V. Usage It is mainly used in electronics, telecommunication, automobiles,shipping and other manufacturing industries. Characteristics Halogen free, non-smoke, non-toxic, flame-retardant, soft, quick shrink, stable performance Shrink ratio: 2:1 Shrink temperature: 84ºC ~ 120ºC Property Unit Test Method Standard Tensile Strength MPA ≥10.4(before aging) GB/T 1040 ≥7.3(after aging) 158ºC*168h Breakage Elongation (%) % ≥200(before aging) GB/T 1040 ≥100(after aging) 158ºC*168h Heat Shock - no sticking & no cracking 250ºC*4h Cold Blend - no cracking -30ºC*4h Breakdown Strength KV/mm ≥15 GB/T 1408 Dielectric Withstand 600V - Pass no breakdown for 2500V, 60s 300V - Pass no breakdown for 1500V,60s Volume Resistivity Ω. cm ≥1×1014 GB/T 1410 Corrosion Performance - pass 158ºC*168h Copper Stability - pass 158ºC*168h Flammability - pass VW-1

Chemical Polyaluminium Chloride solution 12% for waste water drinking water purification Product Description: Drinking water treatment is a process used to remove impurities and make water safe for human consumption. Polyaluminum chloride (PAC) is sometimes used as a coagulant in the treatment of drinking water. The role of PAC is to promote the aggregation of particles in the water and the formation of flocs, making it easier to remove impurities.With a higher concentration of solution PAC, more effective treatment can be achieved with a smaller volume of PAC, making it more cost-effective.Used in the purification of drinking water, urban water supply and precision manufacturing water, especially in paper-making industry, medicine, refined sugar liquor, cosmetic additives and daily chemical industry, etc. Polyaluminium Chloride Solution 12% Waste Water Treatment Agent PAC 0 Appearance Yellowish liquid Odour Faint of hydrogen chloride pH C.1 Boiling point > 110 °C Density c. 1.3 kg/l (20 °C) Melting point < -20 °C Solutility Soluble in water Flash point Not applicable Specifications ​Polyaluminium Chloride Solution 12% Waste Water Treatment Agent PAC 1Polyaluminium Chloride Solution 12% Waste Water Treatment Agent PAC 2​ Agent types Industry water treatment Drinking water treatment Item PAC-02 PAC-04 Appearance(solution) pale Yellow colorless Al2O3 content % ≥ 6.0 10.0 Basicity % 30-95 45-90 PH (1% water solution) 3.5-5.0 3.5-5.0 Water insolubles % ≤ 0.4 0.1 Note: They can be customized-made based on your special request. Our certifications Polyaluminium Chloride Solution 12% Waste Water Treatment Agent PAC 3 Advantages: 1. Higher concentration: With a higher concentration of PAC, more effective treatment can be achieved with a smaller volume of PAC, making it more cost- effective. 2. Improved coagulation and flocculation: The higher concentration of PAC can lead to improved coagulation and flocculation, which is the process of bringing suspended particles together to form larger, more easily settled particles. 3. Improved treatment efficiency: The higher concentration of liquid PAC can lead to improved treatment efficiency, reducing the amount of PAC required for treatment and resulting in lower costs. 4. Improved treatment speed: The higher concentration of liquid PAC can lead to improved treatment speed, reducing the time required for treatment and improving the overall efficiency of the treatment process. Polyaluminium Chloride Solution 12% Waste Water Treatment Agent PAC 4 Application Field: Widely used in the purification of drinking water, urban water supply and precision manufacturing water, especially in paper-making industry, medicine, refined sugar liquor, cosmetic additives and daily chemical industry, etc.​ Polyaluminium Chloride Solution 12% Waste Water Treatment Agent PAC 5 Our services ​* Sample testing support * Fast reply within 24hours online to answer your questions and solve doubts. * Test every batch before shipment to ensure the quality * Keeping clients informed with logistics information monitoring. * Feel free to consult us about the products at any time.

PE Flotation Collar For 8" Hose Holding HDPE Pipe Floater Dredge Pipe Floats For Oil Dam Water Trash Holding Barrier Product performance characteristics: 1. Good toughness and excellent impact resistance, especially suitable for offshore construction. 2. Light weight, easy to install and carry, and low transportation and transfer cost. 3. Wear resistance and long service life. 4. The price is low, and the performance-price ratio is significantly better than the steel buoy. Dimension: Outside Diameter(mm) Wall thickness(mm) SDR26 SDR21 SDR17 SDR13.6 SDR11 0.4Mpa 0.6Mpa 0.8Mpa 1.0Mpa 1.25Mpa 110 4.2 5.3 6.6 8.1 10.0 125 4.8 6.0 7.4 9.2 11.4 160 6.2 7.7 9.5 11.8 14.6 180 6.9 8.6 10.7 13.3 16.4 200 7.7 9.6 11.9 14.7 18.2 225 8.6 10.8 13.4 16.6 20.5 250 9.6 11.9 14.8 18.4 22.7 280 10.7 13.4 16.6 20.6 25.4 315 12.1 15.0 18.7 23.2 28.6 355 13.6 16.9 21.1 26.1 32.2 400 15.3 19.1 23.7 29.4 36.3 450 17.2 21.5 26.7 33.1 40.9 500 19.1 23.9 29.7 36.8 45.4 560 21.4 26.7 33.2 41.2 50.8 630 24.1 30.0 37.4 46.3 57.2 710 27.2 33.9 42.1 52.2 800 30.6 38.1 47.4 58.9 900 34.4 42.9 53.3 66.2 1000 39.2 47.7 59.3 73.6 1200 45.9 57.2 70.6 1400 53.9 66.7 82.4 1600 61.6 76.2 94.2

PRODUCT DESCRIPTION General Usage: It is a hard Ground Coat Frits, can be applied to Cookware/Stove grill/Panel. Product Description: 1, With very good adhesion, can dissolve much iron oxide in metal surface, makes very strong combination with metal body. 2, Can be combined with cover coat in high level. 3, With very good elasticity and compressive strength. Prevent and decrease damage due to mechanical stress. Steel Plate Ground Coat Frit Usage Introduction: Steel plate ground coat frit is mainly used in low carbon steel plate, with very good adhesion and wide firing temperature range. It can be single used, and can be also mixed with other ground coat frits according to firing temperature. Enamel Features Adherence at least number 1 Coefficient of thermal expansion 288.1 Health Information This Ground Coat Frits does not contain Pb, Hg, Cd, Cr+6 Middle Temperature Co Ni Ground Boron Frits Firing Temperature 800-840 Coated On Steel Sheet 0Middle Temperature Co Ni Ground Boron Frits Firing Temperature 800-840 Coated On Steel Sheet 1

Cardarine powder, also known as GW501516 powder, is a revolutionary compound found in the family of Selective Androgen Receptor Modulators (SARMs). It was originally developed to treat numerous metabolic diseases but has since become one of the most popular SARMs on the market. Its unique and powerful effects stem from its ability to activate AMP-activated protein kinase (AMPK) which activates fatty acid oxidation in the mitochondria. This allows for increased endurance, improved aerobic performance and reduced body fat. Additionally, Cardarine has been shown to lower cholesterol levels significantly, reduce inflammation throughout the body and protect against age-related diseases like Alzheimer’s disease and diabetes.

Minimum Order: 10 long tons

How to Buy 2FDCK？ First of all, you need to understand the product very well. Because you understand the product, you will know that true 2FDCK is prohibited in many countries around the world. So most of the things we buy on the market now are substitutes. Since it is a substitute, the production process must be confidential, not only to ensure the interests of suppliers, but also to ensure safe sales. So our product is equivalent to a new product, but both in appearance and quality can meet the needs of customers. How can I know that what I said is right? Sample orders are a very good choice. How about our sample order of 2FDCK Replacement? Our sample packaging is usually 10 grams, and the usual price is $200. Used to test the quality of products, it also allows customers to fully understand whether our products are what you need. Of course, we also provide some free samples to customers, but they are usually for large customers who have their own sales channels or reproduction capabilities. The sample fee will be deducted from subsequent orders. This is also considered a discount for key customers. More details and discount,contact me! Patrick Telegram/signal+852 55133352 wickr:patrickehk Email:patrick@hkunitedchem.com https://www. , hkunitedchem.com/

Minimum Order: 10 long tons

Product Name:Bromazolam CAS:71368-80-4 MF:C17H13BrN4 , MW:353.22 Appearance:Little Pink Powder What is Bromazolam？ Bromazolam is a kind of design chemical, which is not listed, and currently belongs to triazole benzodiazepine (TBZD) according to the product structure. The first successful synthesis was in 1976. After 50 years, it still hasn't been marketed. The reason for this is unknown. However, this does not hinder the research and experiment of various institutions on Bromazolam. Because it has similar effects with other benzodiazepines in sedation and anti-anxiety. According to research, bromazolam is a non-subtype selective agonist at the benzodiazepine site of GABAA receptor α The binding affinity of subtype 1 is 2.81 nM α The affinity of subtype 2 is 0.69 nM, while the affinity of subtype 2 is 0.69 nM α The affinity of subtype 5 was 0.62nM. Bromazolam is a novel investigational chemical for the study of anxiolytic activity in the central nervous system, an antidepressant. It is an organic intermedia. What is the appearance of the Bromazolam and packaging like? Bromazolam is a light pink fine crystalline powder,We will pack the Bromazolam powder according to your needs. If you have no special requirements for packaging, we will use two layers of transparent ziplock bag + one layer of aluminum foil bag + one layer of carton for packaging. This helps to prevent leakage of goods during transportation, avoid contamination of goods, and ensure safe transportation. If you have special requirements for packaging, we will pack the goods according to your proposal to meet your needs. Bromazolam is it legal? This product is not listed as a regulated product in the world. But in Canada, Germany and the United Kingdom, there are restrictions on its use. Of course, the policies of all countries are constantly changing. If you want to know whether you can legally purchase Bromazolam power, please contact us by email and tell us your address and purpose. We will check the latest policy to you. Who can buy Bromazolam powder safely? As a research chemical powder,buy Bromazolam powder in your country is legal,then you could buy Bromazolam from us.We have safe shipping method could promise door to door by EXPRESS like DHL,usps. Deliver time is usually 2-3 weeks.More details about order Bromazolam powder online,pls contact me. Is it safe to transport? We have in-depth cooperation with many freight companies around the world. They all have many years of experience in transporting such goods and have strong customs clearance capabilities. We have been committed to delivering the goods safely to your hands. After you place an order, we will deliver the goods to the warehouse of the destination country through the cooperative freight company. After completing customs clearance and ensuring safety, the goods will be delivered to you. Deliver to the local courier to ensure that the goods can be safely delivered to your hands. Of course, we can also hand over the goods to your designated cargo transportation company for transportation according to your requirements. Is it possible to start with a sample before buying in bulk? Our regular packaging is 1kg/bag. Of course, we also support you in sample testing, because we are very confident in our products, and we have always adhered to the principle of "A person of integrity can stand tests." Sincerely welcome your consultation How to order Bromazolam online in ? You can leave us a message through email, our professional sales staff will contact you in time. In order to give you a more accurate quotation, I need to know the following information: product name, order quantity, delivery country, etc. Contact me for more details! Patrick Telegram/signal+852 55133352 wickr:patrickehk Email:patrick@hkunitedchem.com https://www. , hkunitedchem.com/

Minimum Order: 1 bags

Product Name: 1-Phenyl-2-nitropropene Other names: P2NP CAS: 705-60-2 Molecular formula: C9H9NO2 Molecular weight: 163.17 EINCES: 627-363-3 Melting point: 63-65 °C Boiling point: 263.0±9.0 °C Density: 1.141±0.06 g/cm3 Appearance: yellow crystalline powder What is 1-Phenyl-2-nitropropene? 1-Phenyl-2-nitropropen , e, also known as P2NP, is an alkene derivative that can be used as an organic intermediate. It is widely used in research chemistry. What does 1-Phenyl-2-nitropropene look like? Phenyl-2-nitropropene is a yellow crystalline powder Contact me for more details! Patrick Telegram/signal+852 55133352 wickr:patrickehk Email:patrick@hkunitedchem.com https://www. , hkunitedchem.com/

Minimum Order: 1 bags

Product Name:N-(tert-Butoxycarbonyl)-4-piperidone MF:C1 , 0H17NO3 MW:199.25 CAS:79099-07-3 Appearan , ce:White or little Yellow powder What is N-(tert-Butoxycarbonyl)-4-piperidone? As BOC is the short of t-Butyloxy carbonyl,so we often call N-(tert- Butoxycarbonyl)-4-piperidone as "N-boc-4-piperidone".In organic synthesis, boc is very common and often used as a protective group. 1 N-boc-4-piperidone is an intermediate, which can be made into drugs for treatment by reacting with other compounds. The general application direction is angiotensin converting enzyme inhibitor (ACEI) (Trandolpril), anti AIDS protease inhibitor indinavir (indinavir), etc., of course, it can also treat degenerative diseases, some cancers, and diseases caused by viruses, fungi, bacterial infections, etc. How to buy N-(tert-Butoxycarbonyl)-4-piperidone powder? N-(tert-Butoxycarbonyl)-4-piperidone,as a intermediate,it is a powder form.If you are interested in buy N-(tert-Butoxycarbonyl)-4-piperidone powder,we could start from N-(tert-Butoxycarbonyl)-4-piperidone sample,usually 10g sample is enough for customers to know the quality.Buy N-(tert-Butoxycarbonyl)-4-piperidone powder for resell and reproduce is the purpose for most of customers.No matter which reason,quality is the most important thing.So we always support sample packing for new customers. How to test quality after customers received N-(tert-Butoxycarbonyl)-4-piperidone sample? N-(tert-Butoxycarbonyl)-4-piperidon , e,as raw chemical powder,test purity by HPLC will be a accurate and scientific way.At the same time, many experienced buyers will also judge according to their own experience. As an intermediate, we do not provide a test report, but if you want to test the sample first after determining the quantity and purchase details of the bulk goods, we can provide it.The quality of the bulk goods is consistent with the sample. Could you shipping to me safely? If you buy N-(tert-Butoxycarbonyl)-4-piperidone in US,Canada,EU like Spain,France,Italia,we have safe shipping method.For other countries,pls let me know your shipping address,I will check and reply to you the best shipping method. Why I couldn't promise safe shipping to all over the world? As a chemical powder,if customers don't have a company to handle with customs when import,I need to find a professional agent deal with it.Some countries customs are very strict,cusotom clearance rate is not well. So I will feed back the detailed transportation method to the customer before ordering to ensure that the customer is aware of all risks. Contact me for more details! Patrick Telegram/signal+852 55133352 wickr:patrickehk Email:patrick@hkunitedchem.com https://www. , hkunitedchem.com/

Minimum Order: 1 bags

Product Name:PMK ethyl glycidate MF:C13H14O5 MW:250.25 CAS:28578 , -16-7/PMK ethyl glycidate PMK ethyl glycidate Liquid,PMK Oil /PMK ethyl glycidate Powder What is PMK Powder? PMK has changed for many generations. Now there are basically two forms, one is the power form and the other is the oil form. There is a slight difference in price between the two. At present, the most popular product we are selling is CAS No. is 28578-16-7. Some people also will call it as PMK ethyl glycidate. How we sell PMK Powder? We sell PMK Powder over the world.Good quality and safe shipping could promise customers receive what their want. PMK Powder often sell in 1kg/bag,most of regular customers often buy 25kg,100kg.For new customers who want to know quality first,we could provide chargeable sample,10g,100g both ok. Can I order from you if I am in Australia? Yes,after we confirm all details about orders by email or whats app,we will arrange deliver after receive payment by USDT or Bitcoin. Tracking no. will send to you in 1-2days. Usually no matter you want to buy PMK Powder in Australia,USA,UK and EU countries like Italy,Frace,Germany,Spain,we could ensure safe shipping to you. Contact me for more details! Patrick Telegram/signal+852 55133352 wickr:patrickehk Email:patrick@hkunitedchem.com https://www. , hkunitedchem.com/

Minimum Order: 1 bags