Shanghai Rich Chemical Co.,Ltd

DL-Cysteine

• Category :

  Pharmaceuticals and Biochemicals/Vitamin, amino acids and coenzymes

• Synonyms :

  DL-2-Amino-3-mercaptopropionic acid;2-Amino-3-mercaptopropionic acid;Cystein;Cysteine;Thioserine;2-Amino-3-mercaptopropanoic acid;

• CAS NO :

  3374-22-9

• EC NO :

  222-160-2

• Molecular Formula :

  C₃H₇NO₂S

• Molecular Weight :

  121.1582

• Main Specifications :

  98%

• InChI :

  InChI=1/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1

• Packing :

  25kg drum

• Product description :

  Specification Appearance White crystals or crystalline powder Specific Rotation[α]D20 -1° to +1° State of solution Clear and colorless Not less than 95.0% Chloride (Cl) Not more than 0.10% Iron (Fe)Not more than 5ppm Heavy Metals (Pb)Not more than 10ppm Aresenic (As2O3)Not more than 1ppm Other amino aicdsChromatographically not detectable Loss on dryingNot more than 0.2% Residue on ignition Not more than 0.1% Assay 98.0% to 102.0%

• Molecular Structure :