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3-Nitrobenzaldehyde:

Applications: It is used chiefly in the synthesis of other organic compounds, ranging from pharmaceuticals to plastic additives. In pharmaceuticals, it is used to make drugs such as Nimodipine, Nitrendipine and Nicardipine (anti-hypertensive drugs). It is an important intermediate for the processing of perfumes and flavoring compounds. It is the first step in the synthesis for fragrances. To make the preparation of certain aniline dyes. Other applications include in Galvanotechnical and X-ray contrast media.

Specifications: CAS No # 99-61-6 Parameters Standard Appearance Light yellow crystalline powder or granules Purity, % >99.5 Melting Point, oC 56-59 Moisture, % <0.5% 2-Nitrobenzaldehyde, % <0.3 4-Nitrobenzaldehyde, % <0.1 Packing: 25kg cardboard drum, 200kg PE drum

Ethyl Succinyl Chloride

Application: Used in certain drug compounds, in agricultural and food production, and in perfume esters manufacturing. Succinyl chloride ethyl ester is used in preparing synthetic vitamins, pharmaceuticals, agrochemicals and other organic compounds.

Specifications: CAS No # 14794-31-1 Appearance: Clear Transparent Liquid Purity: >95 % Chloride 19~24 % Packing: 200Kgs drum

Sodium Dicyanamide

Applications: Used for synthesis of pharmaceuticals e.g. chlorhexidine HCL anti-microbial agent, biguanide, proguanil and alexidine.

Specifications: CAS No # 1934-75-4 Appearance: White to off-white powder Purity, % 97.0 min Melting Point, oC 300 Water Contents,% 0.5 max. Bulk Density, kg/m3 670-1050 Solubility@ 30oC Water 260g/L Methanol 40g/L Parameters Standards Impurity (NaCl),% 3 max. Packing: 25Kgs in fiber drum

Sulfadoxine

Applications: Can cure common inflammation such as upper respiratory tract infection,amygdalitis, skin infection, tuberculosis, scrofula, malaria etc. *Also used in veterinary medicine or feed additive.

Specifications: USP 31/BP2009 CAS No # 2447-57-6 Parameters Standards Appearance: White or yellowish crystalline powder Odor/Taste Odorless with lightly bitter taste Melting Point, oC 198 .Packing: 25kgs cardboard drum( 42cm×42cm×48cm )

Paracetamol( Para Acetyl Aminophenol)

.Applications: Paracetamol is a drug used as a painkiller (analgesic) and reducing fever( antipyretic). It is commonly used for the relief of headaches, other minor aches and pains and is a major ingredient in numerous cold and flu remedies. In combination with opioid analgesics, paracetamol can also be used in the management of more severe pain such as post surgical pain and providing palliative care in advanced cancer patients.

Specifications: CAS No # 103-90-2 Parameters Standards Appearance White crystalline powder Assay,% 99~101 Melting Point, oC 168-172 Loss on drying,% <0.5 Chloride,% <0.014 Heavy Metal,% <0.001 Ph 5.5~6.5 Related Substances (4-Chloroacetanilide) Complies Packing: 25kgs drum,20’FCL=11MT

Dorzolamide Intermediates:

(A) (4S-Trans)-N-(5,6-dihydro-6-methyl-7,7dioxide-4h-thieno-[2,3-b]-thiopyran-4-yl)acetamide CAS No # 147086-79-1 (B) (4S-trans)-N-[2-(aminosulfonyl)-5,6-dihydro-6-methyl-7,7-dioxido-4H-thieno-[2,3-b]thiopyran-4-yl]-acetamide CAS No #147200-03-1 (C) 6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide CAS No # 120279-88-1 (D) (4R,6S)-5,6-Dihydro-4-hydroxy-6-methylthieno[2,3-b]thiopyran-7,7-dioxide CAS No # 147128-77-6

Drospirenone Intermediates:

(A) (3b,5b, 15a,16a)-15,16-Dihydro-3,5-dihydroxy-3'H-cycloprop[15,16]androsta- 6, 15-dien-17- one CAS No # 82543-15-5 (B) 3b, 5-Dihydroxy-6b,7b:15b,16b-dimethylene-5b-androstan-17-one CAS No # 82543-16-6

N-Methyl Pyrrolidone(NMP)

Uses: * It is an important part of antibiotics such as penicillin. These structures, cyclic esters and analogues, are active nucleuses in pharmacological activity and flavorings. * It has a big demand in artificial fiber industry. They are polymerizable and used as nylon precursors. * It is used as a solvent for surface treatment for textiles, metal coated plastics, polymers, and paint removing. * Pyrrolidone and its derivatives are used as Intermediates for the synthesis of agrochemicals, pharmaceuticals, textile auxiliaries, plasticizers, polymer solvent, stabilizers, specialty inks and as a nylon precursor. * NMP is used as a solvent for paint stripping and resins; cleaner for polymeric residues; metal finishing; printed circuit board manufacturing; SBR latex production; pigment dispersant; extraction of acetylene and butadiene; dehydration of natural gas; lube oil processing.

Specifications: CAS No # 872-50-4 Parameters Standards Appearance: turns yellow on exposure to heat Purity: 99% min. Melting Point,oC 24 Moisture:% 0.1 Amine: % 0.1 APHA: <50 Pyrrolidone is a keto-pyrrole,that is a 5-membered lactam structure compound (gamma-butyrolactam). Lactam structure compound including pyrrolidone has good solvency property, therefore useful in industrial applications. Packing: 200Kgs net/plastic drum.

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