D-Isoleucine CAS 319-78-8
Product Introduction (2R,3R)-2-Amino-3-methylpentanoic acid, also known as D-Isoleucine, is a critical chiral building block. It serves as a fundamental starting material for the stereoselective synthesis of complex molecules. Its primary role is in the preparation of chiral drugs, additives, and catalysts where specific stereochemistry is essential for activity and efficacy. Physicochemical Properties Property Value Product […]
1,3-Diphenylguanidine CAS 102-06-7
Product Introduction 1,3-Diphenylguanidine (DPG) is a highly effective secondary accelerator used for the vulcanization of natural and synthetic rubbers. It significantly enhances the curing process, particularly when used in combination with other primary accelerators. Its performance makes it a crucial component for achieving desired material properties in rubber manufacturing. Physicochemical Properties Property Value Product Name […]
4-(1-hydroxy-1-methylethyl)-2-propyl-1h-imidazole-5-carboxylic acid ethyl ester cas 144689-93-0
4-(1-hydroxy-1-methylethyl)-2-propyl-1h-imidazole-5-carboxylic acid ethyl ester cas 144689-93-0 Product Name: Olmesartan intermediate Other Name: OMSTint-D; Ethyl 4-1-hydroxy-1-methylethyl-2-propyl-imidazole-5-carboxylate CAS: 144689-93-0 Molecular Formula: C12H20N2O3 Molecular Weight: 240.3 Appearance: White or off-white powder Olmesartan intermediate (4-(1-hydroxy-1-methylethyl)-2-propyl-1h-imidazole-5-carboxylic acid ethyl ester) Typical Properties Name OMSTint-D Other Name 4-(1-Hydroxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylic acid ethyl ester Appearance White or off-white powder Molecular Formula C12H20N2O3 Molecular Weight 240.3g […]
levosimendan cas 141505-33-1
levosimendan cas 141505-33-1 Chemical Name:Levosimendan CASNo.: 141505-33-1 Molecular Formula: C14H12N6O Molecular Weight: 280.28 Chemical Structure: Appearance:Yellow crystalline powder, odorless, tasteless Levosimendan Typical Properties Item Specifications Appearance Yellow crystalline powder, odorless, tasteless. Solubility Sparingly soluble in Methanol and Acetone,slightly solublein ethanol and chloroform,practically insoluble in water. Identification byHPLC The retention times of the major peak of […]
gallic acid cas 149-91-7
gallic acid cas 149-91-7 Chemical Name: Gallic acid CAS No.:149-91-7 Molecular Formula: C7H6O5 Molecular weight: 170.12 Gallic acidStructure: Appearance: white powder Assay: Food grade anhydrous99.5% Gallic acid Typical Properties Item Standard The amount of gallic acid content (dry basis) % 99.50 min Loss on drying% 0.50max Tannic acid test No cloudy Water dissolved experiment No […]
vitamin k3 msb96 cas 130-37-0
vitamin k3 msb96 cas 130-37-0 Chemical Name: VITAMIN K3 MSB96 CAS No.: 130-37-0 Molecular Formula: C11H9NaO5S Chemical Structure: Molecular Weight:276.24 Appearance:White crystalline powder Assay: 96% VITAMIN K3 MSB96 Typical Properties Item Standard Appearance White crystalline powder MSB Assay 96%min Menadione 50.0%min Free Sodium Bisulfite 5.0%max Water 13%max Colour of solution ≤ No.4 of yellow and […]
nimodipine cas 66085-59-4
nimodipine cas 66085-59-4 Chemical Name: Nimodipine CAS No.: 66085-59-4 Molecular Formula: C21H26N2O7 Chemical Structure: Molecular Weight:418.44 Appearance:Light yellow or yellow crystalline powder. Assay: 98.5%-101.5% Nimodipine Typical Properties Item Specifications Appearance Light yellow or yellow crystalline powder. Solution appearance Should comply with the requirement Optical rotation -0.10°to 0.10°(20℃) Infrared spectrum Should comply with reference spectrogram Related […]
zinc chloride cas 7646-85-7
zinc chloride cas 7646-85-7 Chemical Name: Zinc chloride CAS No.: 7646-85-7 Molecular Formula: Cl2Zn Chemical Structure: Molecular weight:136.3 Appearance: White powder or pellet Assay: ≥98.0% Zinc chlorideTypical Properties Item Specifications Appearance White powder or pellet Zinc Chloride content % ≥98.0 Basic salt content(as ZnO) % ≤2.0 Sulphate content (as SO4) % ≤0.01 Ba % ≤0.1 […]
menbutone cas 3562-99-0
menbutone cas 3562-99-0 Chemical Name:Menbutone CAS No.: 3562-99-0 Molecular Formula:C15H14O4 Molecular weight: 258.27 Appearance:Off-white powder Menbutone Typical Properties Item Standard Appearance Off-white to grey powder Assay% ≧98 Melting point （℃） 172-174 Moisture(K.F.) % ≦0.1 Ignition residue% ≦0.5 Single impurity % ≦0.5 Total impurities% ≦2 Menbutone Usage Menbutone, a derivative of oxybutyric acid, is a choleric […]
quercetin cas 6151-25-3
quercetin cas 6151-25-3 Chemical Name: Quercetin CAS No.: 6151-25-3 Molecular Formula: C15H14O9 Quercetin Structure: Molecular weight:338.27 Appearance:Yellow, crystalline powder Assay: 95% QuercetinTypical Properties Item Standard Appearance Yellow, crystalline powder Solubility Practically insoluble in water Soluble in aqueous alkaline sol. Melting point 305-315℃ Identification Must positive Loss on drying ≤8-12% Sulphated Ash content ≤0.5% Heavy Metal […]
pterostilbene cas 537-42-8
pterostilbene cas 537-42-8 Chemical Name: Pterostilbene CAS No.: 537-42-8 Molecular Formula: C16H16O3 Pterostilbene Structure: Molecular weight:256.3 Appearance:White to Off white powder Assay: 95% Pterostilbene Typical Properties Item Standard Assay(%,on dried base) NLT99.0% Appearance Fine Powder Color White to Off white Identification Positive Loss on drying 0.5% Max Ignition Residue 0.5% Max Particle Size 100% Pass […]
cytochrome c cas 9007-43-6
cytochrome c cas 9007-43-6 Chemical Name: Cytochrome C CAS No.: 9007-43-6 Molecular Formula: C42H52FeN8O6S2 Cytochrome Cstructure: Molecular weight: 884.88728 Appearance: Red or brownish red freeze-dried powder Assay: 99.5%min Cytochrome CTypical Properties Item Specifications Appearance Red or brownish red freeze-dried powder Colorimetric methodIdentification definite High pressure chromatography definite PH 5.0-7.0 Content >95.0 % Iron Content 0.40—0.48% […]
Polyvinylpyrrolidone CAS 9003-39-8
Description Polyvinylpyrrolidone (CAS 9003-39-8), commonly known as PVP or Povidone, is a highly versatile, water-soluble polymer derived from N-vinylpyrrolidone monomer. Renowned for its excellent solubility in water and many organic solvents, low toxicity, and superb film-forming capabilities, PVP is a staple excipient in the pharmaceutical industry. It serves multiple functions, including acting as a binder, […]
brefeldin a cas 20350-15-6
brefeldin a cas 20350-15-6 Chemical Name: Brefeldin A CAS No: 20350-15-6 Molecular Formula: C16H24O4 Molecular Weight: 280.36 Chemical Structure: Appearance: A white crystalline powder Assay: 98% Brefeldin A Typical Properties Item Specifications Appearance A white crystalline powder Solubility Soluble in methanol, chloroform Water ≤3% Heavy Metals <20ppm Total Impurities(HPLC) ≤2% Purity(HPLC) ≥98% Brefeldin A Usage […]
taurine cas 107-35-7
taurine cas 107-35-7 Chemical Name: Taurine CAS No.: 107-35-7 Molecular Formula: C2H7NO3S Chemical Structure: Molecular weight: 125.15 Appearance: White crystalline powder Assay: 99% Taurine Typical Properties Item Standard of JP16 Standard of USP38 Characteristics A white crystalline powder, odorless Identification Positive Positive Clarity and color of asolution Clear,and colorless ———- Chloride 0.011% max 0.05% […]