Organic Intermediates

Product Name: 2,3-Dihydrofuran CAS NO.:1191-99-7 Assay: 99.0%min Appearance: colourless transparent liquid Package: 180kg/iron-drum and long-term inventory Usage:Pharmaceutical intermediates and Organic synthesis intermediates Product Name 2,3-Dichloropropene Other Name 2,3-dihydrofuran stab 2,3-DHF 2,3-dihydro-fura 2,3-Dihydro , genfuran 4,5-Dihydrofuran 2 3-DIHYDROFURAN 99+% 2,3-DIHYDROFURANE CAS 78-88-6 EINECS 214-747-7 Molecular Formula C4H6O Molecular Weight 70.0898 inchi InChI=1/C4H6O/c1-2-4-5-3-1/h1,3H,2,4H2 Density 0.959g/cm3 Boiling point 54.5°C at 760 mmHg Flash point -24°C Vapor pressure 258mmHg at 25°C Refractive index 1.45 Dangerous goods sign F;Xn   Risk term R11;R19;R22;R36 Security term S16;S18;S26;S39 Dangerous Goods Transport Number UN 2047

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3,4-Dihydropyran is mainly as a pharmaceutical intermediate. Alcohol group protection reagent; widely used in hydroxyl group protection reagent. Dihydropyran is chemically active, and tetrahydropyran, pentanediol, glutaric acid, valerolactone, pentadiene and resin products can be produced through polymerization, hydrogenation, oxidation and other reactions. Product Name: 3,4-dihydropyran Other Name: 2,3-dihydropyran CAS NO.: 110-87-2 Assay: 98.0%min Appearance: colorless transparent liquid Package: 180kg/iron-drum and long-term inventory Usage:Pharmaceutical and organic synthesis intermediates, Hydroxyl protection agents. Product Name 3,4-dihydropyran Other Name 3,4-Dihydro-2H-pyran; 2,3-Dihydro-4H-pyran ; 5,6-Dihydro-4H- pyran ; DHP CAS 110-87-2 EINECS 203-810-4 Molecular Formula C5H8O Molecular Weight 84.1164 inchi InChI=1/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2 Dens , ity 0.9221 (19/15℃) Boiling point 86-87℃ Flash point -15℃ Vapor pressure 77.8 hPa (20 °C) Refractive index 1.4402 (19℃) Dangerous goods sign F,Xi Risk term R11R36/37/38 Security term S9S16S33 Dangerous Goods Transport Number UN2376 3/PG 2

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Product Name: Tetrahydro-4H-pyran-4-one CAS NO.: 29943-42-8 Other Name: 4-Oxotetrahydropyran; Tetrahydropyran-4-one Assay: 99.0% min Appearance: Colorless transparent liquid Packing: 200kg/drum and long-term inventory Usage: Pharmaceutical intermediates and organic synthesis intermediates Product Name Tetrahydro-4H-pyran-4-one Other Name I4-Oxotetrahydropyran; Tetrahydropyran-4-one CAS 29943-42-8 EINECS 249-967-2 Molecular Formula C5H8O2 Molecular Weight 100.12 inchi InChI=1/C5H8O2/c6-5-1-3-7-4-2-5/h1-4H2 Density 1.084 Boiling point 166-166.4℃ Flash point 56℃ Vapor pressure / Refractive index n20/D 1.452(lit.) Dangerous goods sign F,Xi Risk term R10-36/37/38 Security term S24/25-36-26 Dangerous Goods Transport Number UN 1224 3/PG 3

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2-Aminothiazole is a heterocyclic amine and is the beginning reagent for the synthesis of many pharmaceutical and agricultural related compounds. Reactivity Profile 2-Aminothiazole reacts violently when nitrated with nitric or nitric-sulfuric acids. 2-Aminothiazole is also incompatible with strong oxidizing agents, strong acids, acid chlorides and acid anhydrides. Product Name: 2-Aminothiazole Other Name: 2-Thiazolamine CAS NO.: 96-50-4 Assay: 99.0%min Appearance: Pale yellow crystal powder Package: 25kg/drum and long-term inventory Usage: Electronic chemicals and dyestuff intermediates,organic synthesis Intermediates Product Name 2-Aminothiazole Other Name 2-Thiazolamine CAS 96-50-4 EINECS 202-511-6 Molecular Formula C3H4N2S Molecular Weight 100.14 inchi InChI=1/C3H4N2S/c4-3-5-1-2-6-3/h1-2H,(H2,4,5) D , ensity 1.241 (estimate) Boiling point 117 ºC (15 mmHg) Flash point 117°C/15mm Vapor pressure <1 hPa (20 °C) Refractive index 1.5300 (estimate) Dangerous goods sign Xn Risk term R22;R36/37 Security term S26;S39  Dangerous Goods Transport Number UN2811

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2-Amino-5-nitrothiazole, as an important intermediate for the preparation of azo heterocyclic dyes. Product Name: 2-Amino-5-nitrothiazole Other name: aminzolsoluble ; 5-nitro-2-Thiazolamine CAS NO.:121-66-4 EINECS NO.:204-490-9 Molecular formula:C3H4N2O3S Melting point:196-204℃ Assay: 99.0% Appearance: Greenish-yellow to orange or brown powder Package: 25kg/drum or as customized Usage: As an important intermediate of pharmaceutical and dye. Product Name 2-Amino-5-nitrothiazole Other Name aminzolsoluble ; 5-nitro-2-Thiazolamine CAS 121-66-4 EINECS 204-490-9 Molecular Formula C3H3N3O2S Molecular Weight 145.14 inchi 1S/C3H3N3O2S/c4-3-5-1-2(9-3)6(7)8/h1H,(H2,4,5) , Density 1.583 (estimate) Boiling point 196-204ºC Flash point / Vapor pressure / Refractive index 1.6740 (estimate) Dangerous goods sign Xn Risk term R40;R20/21/22 Security term S45;S24/25 Dangerous Goods Transport Number UN2811

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Product Name: P-Toluenesulfonic anhydride CAS NO.: 4124-41-8 Assay: 99.0%min Appearance: White crystalline powder Package: 25kg/drum in cold environment Usage: Pharmaceutical intermediates and organic synthesis ntermediates Product Name P-Toluenesulfonic anhydride Other Name 4-Toluenesulfonic acid anhydride p-tolylsulfonyl 4-methylbenzenesulfonate 4-Methylbenzenesulfoni , c anhydride CAS 4124-41-8 EINECS 223-926-9 Molecular Formula C14H14O5S2 Molecular Weight 326.388 inchi InChI=1/C14H14O5S2/c1-11-3-7-13(8-4-11)20(15,16)19 , -21(17,18)14-9-5- 12(2)6-10-14/h3-10H,1-2H3 , Density 1.361g/cm3 Boiling point 478°C at 760 mmHg Flash point 242.9°C Vapor pressure 7.72E-09mmHg at 25°C Refractive index 1.582 Dangerous goods sign C Risk term R34 Security term S26;S36/37/39;S45 Dangerous Goods Transport Number UN 2585

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2,2’-Bipyridine is a metalloproteinase inhibitor used as a reagent for the colorimetric determination of iron. It is a base used for oxidation-reductions indicators and to confirm the presence of ferrous iron in soils. Additionally, 2,2’-bipyridine is used in transition metal catalysis and aluminum-initiated polymerization. It is a high-affinity iron chelator and may inhibit iron- containing enzymes. Product Name: 2,2-Bipyridine Other Name: 2,2-Dipyridyl CAS NO.: 366-18-7 Assay: 98.0%, 99.5%, AR 99.9% Appearance: white crystal powder Package: 25kg/drum and long-term inventory Usage: Widely used in pharmaceutical intermediates, new materials chemical copper plating and organic synthesis intermediates Product Name 2,2-Bipyridine Other Name 2,2-Dipyridyl CAS 366-18-7 EINECS 206-674-4 Molecular Formula C10H8N2 Molecular Weight 156.19 inchi / Density 1.1668 Boiling point 273 ºC Flash point / Vapor pressure / Refractive index 1.4820 Dangerous goods sign T Risk term R25 Security term S36/37;S45 Dangerous Goods Transport Number UN 1663;UN 2811

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Urea 46% N,Nitrogen fertilizer Urea 46% N,Nitrogen fertilizer, Urea 46 Prilled Granular/Urea Fertilizer 46-0-0/Urea N46% Urea 46% N,Nitrogen fertilizer, Urea 46 Prilled Granular/Urea Fertilizer 46-0-0/Urea N46% WHATSAPP No: +254 777 416 710

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Urea 46% N,Nitrogen fertilizer Urea 46% N,Nitrogen fertilizer, Urea 46 Prilled Granular/Urea Fertilizer 46-0-0/Urea N46% Urea 46% N,Nitrogen fertilizer, Urea 46 Prilled Granular/Urea Fertilizer 46-0-0/Urea N46% WHATSAPP No: +254 777 416 710

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Cas NO.: 2894-61-3 Name: Bromonordiazepam Molecular Formula: C15H11BrN2O Melting Point: 220-221 °C(Solv: ethyl ether (60-29-7)) Boiling Point: 464.8°Cat760mmHg Refractive index:1.68 Flash Point: 234.9°C Purity: 99% Appearance:White powder Brand: XingHong Why are we good at organic chemicals? 1. We have 20 years of experience in the organic chemical industry, which has enabled us to acquire excellent raw material resources, develop good synthesis technology, and establish scientific and professional quality control. 2.In addition, we are very familiar with the entire Chinese market, which has allowed us to expand our international trade. 3. Furthermore, we can design and develop a route for your target compound if it does not exist, taking all factors into consideration. If you are looking for a reliable chemical supplier, we are your best choice! Please contact us for the best order and price. You can reach us on Whats App at +8618034561583 or on Wickr Me: albeewang. Synonyms: 3h-1,4-benzodiazepin-2-ol,7-bromo-5-phenyl; 5-Phenyl-7-bromo-1,3- dihydro-2H-1,4-benzodiaze , pine-2-one; 7-Bpdbd; 7-Bromo-5-(phenyl)-1H-1,4- benzodiazepin-2(3H)- , one; 7-bromo-5-phenyl-1,2-dihydro-2H-1,4-benzodiazepin- , 2- one; 7-bromo-5-phenyl-1,2-dihydro-3H-1,4-benzodiazepin- , 2-one; Payment Terms: We accept Bitcoin, T/T, Western Union, and PayPal as payment options. Packing: Our products can be packed in foil bags, cartons, or drums, with various sizes available: 1kg/Foil bag,10kg/Carton,25kg/Carton bucket 1kg foil bags with ziplock bags inside 10kg cartons with foil bags inside 25kg cardboard buckets with double plastic bags inside 250ml bottles, 25kg drums Delivery Details: We aim to deliver your order within 3-5 days after receiving your payment. We offer several shipping options including TNT, UPS, DHL, EMS, FedEx, or a special line. We provide door-to-door service and can assist with shipping and tariffs to guarantee 100% safe delivery. Once your order is shipped, you can simply wait to receive it.

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CAS No: 19099-93-5 Name: 1-(Benzyloxycarbonyl)-4-piperidinone Price: Negotiable Molecular Formula: C13H15NO3 Molecular Weight: 233.267 Melting point: 38-41°C Boiling point: 114-140 °C/0.25 mmHg (lit.) Density:1.172 Flash Point: >110℃ Storage Temperature:Sealed in dry,2-8°C Refractive index:1.542 Moisture Content: 0.1% Appearance: White Powder Purity: 99% Impurity: 0.11% Shelf life: 2 years Brand : XingHong Synonyms: 1-Benzyloxycarbonyl-4-piperidine; 1-benzyloxycarbonyl-piperidin-4- one; 1-CARBOBENZOXY-4-PIPERIDONE; 1-carbobenzyloxy-4-piperidone; 1-Cbz-4- piperidinone; 1-Cbz-4-piperidone; Payment Terms: We accept Bitcoin, T/T, Western Union, and PayPal as payment options. Packing: Our products can be packed in foil bags, cartons, or drums, with various sizes available: 1kg/Foil bag,10kg/Carton,25kg/Carton bucket 1kg foil bags with ziplock bags inside 10kg cartons with foil bags inside 25kg cardboard buckets with double plastic bags inside 250ml bottles, 25kg drums Delivery Details: We aim to deliver your order within 3-5 days after receiving your payment. We offer several shipping options including TNT, UPS, DHL, EMS, FedEx, or a special line. We provide door-to-door service and can assist with shipping and tariffs to guarantee 100% safe delivery. Once your order is shipped, you can simply wait to receive it.

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CAS NO.:37148-47-3 Name: 4-Amino-3,5-dichloro-alpha-bromoacetophenone Pr , ice: negotiable Molecular Formula:C8H6BrCl2NO Molecular Weight: 282.946 EINECS No.:200-123-4 Boiling Point:679.1±55.0 at 760 mmHg purity:99.6% Flash Point:364.5±31.5 Melting Point:298-300 Place of Origin:Hebei, China Application:For research Appearance:Solid, powder Color: Yellow powder Brand : XingHong Synonyms: 1-(4-Amino-3,5-dichlorophenyl)-2-bromoethanone; 4-AMINO-2-BROMO-3,5- DICHLOROACETOPHENONE; 4-AMino-3,5-dichloro-2broMoacetophenone; 4-Amino-3,5- Dichloro-A-Bromo- Acetophenone; 4-Amino-omega-bromo-3',5'-dichloroacetophe , none; Clenbuterol EP Impurity E; Payment Terms: We accept Bitcoin, T/T, Western Union, and PayPal as payment options. Packing: Our products can be packed in foil bags, cartons, or drums, with various sizes available: 1kg/Foil bag,10kg/Carton,25kg/Carton bucket 1kg foil bags with ziplock bags inside 10kg cartons with foil bags inside 25kg cardboard buckets with double plastic bags inside 250ml bottles, 25kg drums Delivery Details: We aim to deliver your order within 3-5 days after receiving your payment. We offer several shipping options including TNT, UPS, DHL, EMS, FedEx, or a special line. We provide door-to-door service and can assist with shipping and tariffs to guarantee 100% safe delivery. Once your order is shipped, you can simply wait to receive it.

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CAS NO.: 236117-38-7 Name: 2-iodo-1-p-tolyl-propan-1-one Price: Negotiable Molecular Formula: C10H11IO Molecular Weight: 274.101 Density:1.584±0.06 g/cm3(Predicted) Boiling Point: 310.5±25.0 °C(Predicted) Purity: 99.6% EINECS:200-510-5 Usage: pharmaceutical intermediates Brand : XingHong Synonyms: 1-Propanone, 2-iodo-1-(4-methylphenyl)-; 2-io2-iodo-1-p-tolyl-propan- 1-onedo-1-p-tolyl- , propan-1-one; 2-Iodo-1-(4-methylphenyl)-1-propanone; 2-IODO- 1-P-TOLYL- PROPAN-1-ONE; 2-iodo-1-p-tolyl-propan-1-one Basic information; Payment Terms: We accept Bitcoin, T/T, Western Union, and PayPal as payment options. Packing: Our products can be packed in foil bags, cartons, or drums, with various sizes available: 1kg/Foil bag,10kg/Carton,25kg/Carton bucket 1kg foil bags with ziplock bags inside 10kg cartons with foil bags inside 25kg cardboard buckets with double plastic bags inside 250ml bottles, 25kg drums Delivery Details: We aim to deliver your order within 3-5 days after receiving your payment. We offer several shipping options including TNT, UPS, DHL, EMS, FedEx, or a special line. We provide door-to-door service and can assist with shipping and tariffs to guarantee 100% safe delivery. Once your order is shipped, you can simply wait to receive it.

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CAS No.:28578-16-7 Names: 2-Oxirane Carboxylic Acid, 3-(1,3-benzodioxol-5-yl)-2-Methyl-, ethyl ester Price: Negotiable Molecular Formula:C13H14O5 Molecular Weight:250.25 Density:1.302 Boiling Point:327.8°C at 760 mmHg Flash Point:143°C Refractive index:1.554 Place of Origin:China Type:organic intermediates Purity: 99.9% Application: organic intermediates Appearance:Yellow liquid or white powder Shelf life:2 Years Brand : XingHong Payment Terms: We accept Bitcoin, T/T, Western Union, and PayPal as payment options. Packing: Our products can be packed in foil bags, cartons, or drums, with various sizes available: 1kg/Foil bag,10kg/Carton,25kg/Carton bucket 1kg foil bags with ziplock bags inside 10kg cartons with foil bags inside 25kg cardboard buckets with double plastic bags inside 250ml bottles, 25kg drums Delivery Details: We aim to deliver your order within 3-5 days after receiving your payment. We offer several shipping options including TNT, UPS, DHL, EMS, FedEx, or a special line. We provide door-to-door service and can assist with shipping and tariffs to guarantee 100% safe delivery. Once your order is shipped, you can simply wait to receive it.

Minimum Order: 1 bags