Offers to Sell

Product Name: Di-tert-butyl dicarbonate CAS 24424-99-5 Synonyms: (BOC)2O;(BOC)2O FLUKA;BOC;BOC ANHYDRIDE;start-butyl- dicarbonate;PYROCARBONIC ACID DI-TERT-BUTYL ESTER;RARECHEM TB OC 0001;Boc Anhydride, solid/liquid MF: C10H18O5 MW: 218.25 EINECS: 246-240-1 Product Categories: Pharmaceutical Intermediates; Starting Raw Materials & Intermediates; Amino Acid Derivatives; Organics; N-Protecting Reagents; Biochemistry; Peptide Synthesis; Protection & Derivatization Reagents (for Synthesis); Protective Reagents (Peptide Synthesis); Reagents for Oligosaccharide Synthesis; Synthetic Organic Chemistry; Boc-Amino acid series; Miscellaneous Reagents Chemical Properties: Melting point: 23 °C (lit.) Boiling point: 56-57 °C/0.5 mmHg (lit.) Density: 0.95 g/mL at 25 °C (lit.) Vapor pressure: 3.85Pa at 25℃ Refractive index: n20/D 1.409(lit.) Fp； 99 °F Storage temp.: 2-8°C Solubility: Chloroform (Sparingly), Methanol (Slightly) Form: Low Melting Crystalline Solid Color: White Specific Gravity: 0.950 Water Solubility: Miscible with decalin, toluene, carbon tetrachloride, tetrahydrofuran, dioxane, alcohols, acetone, acetonitrile and dimethylformamide. Immiscible with water. Sensitive: Moisture Sensitive BRN: 1911173 Stability: Acid Sensitive InChIKey: DYHSDKLCOJIUFX-UHFFFAOYSA-N LogP: 1.87 at 25℃ Usage: 1. Used as an intermediate in medicine and organic synthesis, it is an important amino protective agent used in the synthesis of medicine and agricultural chemical products. 2. Amino acid BOC reagent. It is used to introduce tert-butoxycarbon (BOC) protecting groups in organic synthesis, especially for amino protection of amino acids. It is widely used in the synthesis of medicine, protein and peptide synthesis, biochemistry, food, cosmetics and other products.

Minimum Order: 1 bags

Product Name:18-Crown-6 CAS Number: 17455-13-9 Synonyms: 1,4,7,10,13,16-Hexaoxacyclooctadecane; Hexaoxacyclo-octadecane; 18-Crown 6-ether EINECS NO.: Main Application: Cyanoacrylate adhesive curing accelerator, phase transfer catalyst in synthetic organic chemistry. Extraction and separation of extractant - complexing agent, precious metals and rare earth elements, the electronics industry ion conductive materials, liquid crystal display element material. Molecular Formula: C12H24O6 Molecular Weight: 264.32 Purity:≥99% Moisture (%):≤0.01 form Crystals or Crystalline Mass or Liquid color White or clear colorless Storage: Place in a dry, ventilated place. Specification: Pharmaceutical grade, USP42 EP9.0 Standard Package:＜25KG， by foil-alum bag/pap/bottle ≥25kg，25kg/drum/bag, or as your request key words:18-Crown-6

Minimum Order: 1 bags

Name: Cupric acetylacetonate Synonyms: COPPERACETONYLACETONATE;COPPER ACETYLACETONATE; COPPER(+2)ACETYLACETONATE; , COPPER(II) ACETYLACETONATE; COPPER(II) 2,4-PENTANEDIONATE; CUPRIC(II) ACETYLACETONATE; CUPRIC AA; CUPRIC ACETYLACETONATE CAS: 13395-16-9 MF: C10H14CuO4 MW: 261.76 EINECS: 236-477-9 Product Name: Copper(II) acetylacetonate Identification Synonyms 2,4-Pentanedione copper(II) derivative; Bis(2,4- pentanedionato)copper(II) Molecular Formula Cu(C5H7O2)2 Molecular Weight 261.76 CAS Number 13395-16-9 EINECS/ELINCS 236-477-9 Properties： Appearance Blue needle crystal or powder.s Melting Point 284.0~288.0ºC Solubility Slightly soluble in water and soluble in alcohol, chloroform, and benzene. Stability stable under ordinary conditions Application： Copper(II) acetylacetonate catalyzes coupling and carbene transfer reactions. It is employed to catalyze Michael's additions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. They are used as PVC stabilizers and curing agents for epoxy resins, acrylic adhesives, and silicone rubbers. They are used as solvents, lubricant additives, paint dryers, and pesticides. They are used in glass coatings. Packing and Storage： Packing In 20kgs net cardboard drum. Storage Keep the container tightly closed in a dry and cool place. Safety Information： Irritant Non-hazardous for air, sea, and road freight.

Minimum Order: 1 bags

English name:5-Bromoindole Empirical Formula (Hill Notation): C8H6BrN CAS:10075-50-0 MDL: No. MFCD00005670 Storage temperature: 2.00℃ Molecular weight: 196.05 g/mol Melting point: 90.00°C - 92.00°C Category: Pharmaceutical intermediates: Heterocyclic compounds Appearance: off-white crystal. Melting point 90-92℃. Melting point: 90-92 °C(lit.) Boiling point: 228.5°C (rough estimate) Density: 1.5466 (rough estimate) Refractive index: 1.6550 (estimate) Storage conditions: -20°C Solubility: 126mg/l (calculated) Acidity coefficient (pKa): 16.04±0.30(Predicted) Form: powder or block Color: white to light brown Detection method: HPLC, NMR BRN: 112877 InChI: InChI=1S/C8H6BrN/c9-7-1-2-8-6(5-7)3-4-10-8/h1-5,10 , H InChIKey: VXWVFZFZYXOBTA-UHFFFAOYSA-N SMILES: N1C2=C(C=C(Br)C=C2)C=C1

Minimum Order: 1 bags

MSDS Number: M1599 --- Effective Date: 11/17/99 Product Name: MERCURY Synonyms: Quicksilver; hydrargyrum; Liquid Silver CAS No.: 7439-97-6 Molecular Weight: 200.59 Chemical Formula: Hg Product Codes: J.T. Baker: 2564, 2567, 2569, 2572 Mallinckrodt: 1278, 1280, 1288 Packaging: 1kg/aluminum foil bag; 25kg/barrel; custom Payment methods: Bitcoin, PayPal, Western Union Shipping: Express, Air, or Sea Express: FedEx, UPS, DHL. TNT, ems, ub, hems Ports: Shenzhen, Shanghai, Tianjin, Qingdao, Guangzhou Delivery time: 7 days for express delivery, 3-7 days for air delivery, 7-45 days for sea delivery To ensure 100% safe transportation, we will use special routes, customs clearance by shipping companies, and door-to-door delivery. 100% safe delivery!

Minimum Order: 1 bags

Our inventory encompasses stainless steel machine bolts crafted from high- quality materials, including carbon steel, brass, and stainless steel. Whether you require robust durability, corrosion resistance, or specialized applications, we have the perfect machine bolt solution for your project. Trust in our commitment to quality, precision, and material variety as we deliver reliable machine bolts tailored to suit the demands of your specific applications. General Information of machine bolts for sale Material-Body Steel, Brass, Stainless Steel machine bolt types Steel bolt and nut surface processing way has Electric galvanize and Hot dip galvanize. custom machined bolts and nut have different grades. For example, 4.8grade, 8.8grade, 10.8grade, and so on. There are many machine bolts suppliers, but we are one of the best choices for you. For more information about power line fittings and machine bolt standard, please feel free to contact us!

Minimum Order: 1000

HRFZ-Silicon Hyper Hemispherical lenses, Silicon Lenses Product Description Part Number Hyper Hemispherical -D=12mm, T=7.13 Diameter (mm): 12 Diameter Tolerance (mm): ±0.05 Substrate: HRFZ-Silicon Surface Quality: 80-50 Clear apperture >=90% Surface accuracy: ±0.01 deviation from ideal sphere and plane Center Thickness CT (mm): 7.13 Center Thickness Tolerance (mm): ±0.05 Type: spherical hyper hemispherical Bevel:  Protective bevel as  Silicon Optical Lenses The single crystal of silicon used in semiconductor has low absorption in the infrared wavelength of 1.2 - 7μm and it can be used as an optical element of infrared light.

China hot line tap clamp is a tool used for connecting and fixing electrical equipment. In power systems, hot wire clamps are widely used to ensure the stability and safety of power lines. Hot wire clamps are usually made of aluminum or copper, which have excellent electrical conductivity and corrosion resistance. Their main function is to secure wires or cables securely to brackets or cross arms to prevent the wires from sagging or swinging, thereby reducing wire wear and failure. customized hot line tap clamp is a common fittings in powerline and transmission line system. We have many types hot line tap clamp to match our clients’ requirements. General Information of Hot Line Tap Clamp Material-Body Aluminum Alloy Material-Eye Bolt Stainless Steel Material-Eye Connector Bronze There are many hot line tap clamp suppliers, but we are one of the best choices for you. For more information about power line fittings, please feel free to contact us!

Minimum Order: 1000

UV Fused Silica Window Product Description Fused silica is an excellent optical material, with low thermal expansion, exhibits more shock resistance, high laser damage threshold and good chemical homogeneity There are have UV Fused Silica and IR Fused Silica, UV Fused Silica contains [OH] and IR Fused Silica with minimal [OH] content. UV Fused Silica Window made from UV Fused Silica have high transmission from 185nm to 2100nm, making them ideal for spectroscopic instruments in the UV to IR CLZ Precision optics making UV fused silica windows according to the customer design. We can offer many kinds of fused silica material from Corning, Heraeus, Schott, Ohara and high-quality JGS1 from China.

Fused silica lenses for F-Theta Lenses Product Description Fused silica has a low refractive index than the most other optical glass materials, but it is the ideal material for the High-Power fiber lasers demand. In order to achieve minimum focal shift, large and uniform scan field. Most F- Theta Lenses needs meniscus lenses and the shaped like a hemisphere, keep good surface quality, centering and irregular is hard work. CLZ Precision Optics is a well-known manufacturer of the optical dome, rich experience in the manufacture of hemispherical optical components. Manufacturing meniscus lenses for use in F-Theta Lenses, CLZ Precision Optics can control the centering less than 20 seconds when the lens' diameter is more than 50mm, surface quality is better than 20-10, and irregular can be meet 0.5 fringes or better.

Methylene Bis Thiocyanate (MBT/MTC) CAS 6317-18-6 Methylene Dithiocyanate Chemical Name: Methylene thiocyanate Synonyms: Methylene Bis Thiocyanate (MBT/MTC) Appearance: Pale Yellow Free Flowing Powder / Crystals Transport Package: 25kg/Carton Box; 25kg/Fiber Drum HS Code：2930909090 Description: Methylene Bis Thiocyanate is a light yellow acicular crystalline chemical. Its melting point is 100-104ºC, sight soluble in other organic solvents, soluble in water at 0.4%, and stable under acid conditions. Applications: 1. Control of microbial activity in cooling water systems. 2. Control of slime in Pulp & Paper Manufacturing. 3. Preservation of paints, adhesives, synthetic polymer lattices, and latex emulsions. 4. Anti-microbial treatment of water-thinned products, thickeners, and slurries. 5. Preservation of wood and wood products. 6. Preservation of Leather and Leather products. 7. Oil well brines and drilling mud. Packing: 25kg/paper bag or fiber drum.

Minimum Order: 1 bags

An insulating device made of glass called a glass powerline insulators is used to support and shield wires. Glass insulators are more insulating and more resistant to aging than traditional ceramic insulators. The premium glass used in our company's glass utility pole insulators is given exceptional strength and impact resistance through a special manufacturing process. Harsh environmental factors like humidity, pollution, and extreme temperatures can't harm this kind of insulator. Types of Types of glass insulators Standard glass power line insulators for sale, Anti-Fog/Anti-Pollution glass insulator, Aerodynamic glass insulator all could be supplied in our company, if you have any demand for the Anti-fog/Anti-Pollution toughened glass insulator, please contact us freely. There are many glass insulator factory, but we are one of the best choices for you. For more information about power line fittings, please feel free to contact us!

Minimum Order: 1000

THz Lenses Product Description Silicon suited for making THz components, it is a very important tool for coupling terahertz (THz) radiation into antennas and detectors in integrated circuits. CLZ Optics production Spherical, Hyper-Hemispherical, Hemispherical, Hypo- Hemispherical, and Bullet Silicon lens used for terahertz. CLZ optics has stock with diameter 10.0mm and 12.0mm Hemispherical silicon lens. And we can production silicon lens according to your request and the diameter from 8.0mm to 100mm, for the focusing THz radition we can offer meniscus lenses. Product Features Mounted in a fixed lens mount Easy to focus or collimate terahertz radiation Function For terahertz beam guidance between emitter and detector, we offer superhemispherical and elliptical silicon lenses and aspheric TPX lenses with different diameters and focal lengths.

Custom Silicon Spherical Lenses Product Description Custom Silicon Spherical lenses widely used in Near-Infrared (1.5-3.0 microns) and Mid-Wave IR (3-5 microns) Thermal Imaging Lenses. We provide Silicon lenses with feature precision polished surface, custom coating, such as broadband anti-reflection coated, Diamond-Like-Carbon (DLC) Coating. And silicon is low-density materials, silicon lenses is ideal for reducing the weight of the imaging lenses. Benefits Low Dispersion and Density Transmission from 1.2 to 7μm Custom Optical Lenses Custom Optical Coatings Best metrology testing equipment CLZ Precision Optics is one of China’s leading optical manufacturing companies. We manufacture a wide range of optical components for many different fields like Industrial Laser, Consumer products, Environmental Monitoring, Photography and Aerospace and R&D.