Pharmaceutical intermediate

   [ CAS NO. ] 123-91-1 [ Chemical name ] 1,4-Dioxane [ Commodity name ] 1,4-Dioxane [ Formula ] C4H8O2 [ Molecular weight ] 88.106 [ Characteristics ] Colorless transparent liquid [ Standard based on ] Q/321283GRC03-2003 [ Acidity ] ≤0.01%(as CH3COOH) [ Density ] 1.030-1.035g/ml(20℃) [ Freezing point ] ≥11.0℃ [ Residue on distillation ] ≤0.01% [ Aldehyde ] Meet the test [ Peroxide ] ≤0.005% (as H2O2) [ Assay ] ≥99.5% [ Usage ] It's a kind of solvent of synthetic leather of polyurethane, amino acid, resin-vegetable oil, mineral oil, pharmaceuticals, paint and dye, and a stabilizer of 1,1,1-trichloroethane. It is also used for plasticizer and antioxidant. [ Package ] 200kg/galvanized iron drum Ours is one of the famousest brand in Jiangsu province. It fills in the gap in domestic market and gains scientific and technical progress praise successively.

   [ CAS NO. ] 646-06-0 [ Chemical name ] 1,3-dioxolane [ Commodity name ] 1,3-dioxolane [ Formula ] C3H6O2 [ Molecular weight ] 74.08 [ Characteristics ] Colourless transparent liquid [ Density ] 1.0655 [ Freezing point ] ≥-26℃ [ Peroxide ] ≤0.005% [ Boiling point ] 74-75℃ [ Water ] ≤0.1% [ Assay ] ≥99.5% [ Usage ] It's a kind of excellent organic solvent, which can be used as the solvent and extractant of oil and fat, the electrolytic solvent of lithium battery, and the stabilizer of chlorinous solvent. [ Package ] 200kg/galvanized iron drum

   [ CAS NO. ] 123-99-9 [ Chemical name ] Azelaic acid [ Formula ] C9H16O4 [ Molecular weight ] 188.22 [ Characteristics ] White to slight yellow oblique rhombohedra crystal, needle crystal or powder [ Melting point ] 105-109℃ [ Assay ] ≥99.0％ [ Usage ] It's widely used for cosmetics and pharmaceuticals. [ Package ] 25kg/fibre drum

   CAS NO. ] 99395-88-7 [ Chemical name ] (S)-4-phenyl-2-oxazolidinone [ Formula ] C9H9NO2 [ Molecular weight ] 163.172 [ Characteristics ] White or off-white powder [ Chirality ] S≥99.5%(GC) [ Individual impurity ] ≤0.5%(HPLC) [ Water ] ≤0.5% [ Assay ] ≥99.0% (HPLC) [ Usage ] Intermediate of pharmaceuticals, mainly used in unsymmetrical chiral synthesis. [ Package ] 25kg/fibre drum

   CAS NO. ] 102029-44-7 [ Chemical name ] (R)-4-benzyl-2-oxazolidinone [ Formula ] C10H11NO2 [ Molecular weight ] 177.198 [ Characteristics ] White or off-white powder [ Chirality ] R≥99.5%(GC) [ Individual impurity ] ≤0.5%(HPLC) [ Water ] ≤0.5% [ Assay ] ≥99.0% (HPLC) [ Usage ] Intermediate of pharmaceuticals, mainly used in unsymmetrical chiral synthesis [ Package ] 25kg/fiber drum

   [ CAS NO. ] 101-97-3 [ Chemical name ] Ethyl phenylacetate [ Formula ] C10H12O2 [ Molecular weight ] 164.22 [ Characteristics ] Colourless to slightly yellow transparent liquid [ Standard based on ] Q/321283GRC04-2000 [ Water ] ≤0.2% [ Assay ] ≥99.0% [ Usage ] Intermediate for Diethyl ethylphenyl malonate, chemicals, agrochemicals and pharmaceuticals [ Package ] 200kg/galvanized iron drum

   [ CAS NO. ] 101-41-7 [ Chemical name ] Methyl phenylacetate [ Formula ] C9H10O2 [ Molecular weight ] 150.17 [ Characteristics ] Colourless to slightly yellow transparent liquid [ Density ] 1.0633 [ Boiling point ] 218℃ [ Water ] ≤0.5% [ Assay ] ≥99.0% [ Usage ] It’s used as perfume in confecting essence of honey, chocolate, tobacco and etc. [ Package ] 200kg/galvanized iron drum

   [ CAS NO. ] 83-13-6 [ Chemical name ] Diethyl phenylmalonate [ Formula ] C13H16O4 [ Molecular weight ] 236.0 [ Characteristics ] Colourless to slightly yellow transparent oil liquid [ Standard based on ] Q/321283GRC08-2003 [ Water ] ≤0.2% [ Assay ] ≥98.5% [ Usage ] Intermediate of pharmaceuticals [ Package ] 200kg/galvanized iron drum

   CAS NO. ] 76-67-5 [ Chemical name ] Diethyl ethylphenylmalonate [ Formula ] C15H20O4 [ Molecular weight ] 264.32 [ Characteristics ] Colorless to slightly yellow transparent liquid [ Standard based on ] Q/321283GRC02-2000 [ Density ] ( D420 )1.068-1.072 [ Water ] ≤0.2% [ Assay ] ≥98.5% [ Usage ] Major intermediate for Phenobarbital and Primidone [ Package ] 200kg/galvanized iron drum

   [ CAS NO. ] 13433-00-6 [ Chemical name ] Diethyl aminomalonate hydrochloride [ Formula ] C7H14O4NCl [ Molecular weight ] 211.642 [ Volatiled ash ] ≤0.1% [ Acidity ] ≥320mg KOH [ Melting point ] ≥155℃ [ Loss on drying ] ＜0.5% [ Assay ] ≥99.0% [ Usage ] Intermediate of pharmaceuticals [ Package ] 25kg/fiber drum

   [ CAS NO. ] 38585-74-9 [ Chemical name ] 5-hydroxymethylthiazole [ Formula ] C4H5NOS [ Molecular weight ] 115.15 [ Characteristics ] Slightly yellow oil liquid [ Water ] ≤0.5% [ Assay ] ≥99.0% [ Usage ] Intermediate of pharmaceuticals [ Package ] 25kg /plastic lined iron drum

   [ CAS NO. ] 10601-19-1 [ Chemical name ] 5-Methoxyindole-3-formaldehyde [ Formula ] C10H9NO2 [ Molecular weight ] 175.19 [ Characteristics ] Slightly yellow crystal [ Loss on drying ] ≤0.5% [ Assay ] ≥98.0% [ Usage ] Intermediate of pharmaceuticals [ Package ] 25kg/fibre drum

   CAS NO. ] 124-41-4 [ Chemical name ] Sodium methylate-methanol solution [ Formula ] CH3ONa [ Molecular weight ] 54.024 [ Characteristics ] Colourless to slightly yellow transparent liquid [ Water ] ≤0.2% [ Free alkali ] ≤0.5% [ Assay ] 27.5～31.0% [ Usage ] Catalyst for bio-diesel and intermediate of pharmaceuticals [ Package ] 180kg/iron drum

   [ CAS NO. ] 141-52-6 [ Chemical name ] Sodium ethoxide-ethanol solution [ Formula ] C2H5ONa [ Molecular weight ] 68.05 [ Characteristics ] Red-brown transparent liquid [ Usage ] Intermediate for Phenylbutazone, Piroxicam, pharmaceuticals and agrochemicals. [ Package ] 180kg/iron drum

   CAS NO. ] 744-80-9 [ Chemical name ] 1-Benzoyl-5-ethyl-5-phenyl barbitoric acid [ Commodity name ] Benzobarbital [ Formula ] C19H16N2O4 [ Molecular weight ] 336.34 [ Characteristics ] A white crystalline powder [ Acidity ] pH=6.0-6.8 [ Melting point ] 134-137℃ [ Solubility ] Practically insoluble in water, slightly soluble in 95% ethanol, soluble in ether and easily soluble in chloroform [ Clarity and color of solution ] Clear and colourless in its 5ml of 0.1% 1N NaOH solution. [ Related impurity ] Total impurities≤0.8%(by TLC) single impurity≤0.4%(by TLC) [ Chloride ] ≤0.005% [ Sulphates ] ≤0.025% [ Sulfate ash ] ≤0.1% [ Heavy metal ] ≤0.001% [ Assay ] ≥99.0% [ Usage ] Anti-epilepsy [ Package ] 25kg/fibre drum It's a national key new product and New & High Technological product of Jiangsu province, which fills in the gap in domestic market. It gains scientific and technical progress awards successively. Its quality complies with the standard of ND42-13458-05.