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102837 L-Cystine

L-Cystine for biochemistry. CAS 56-89-3, molar mass 240.30 g/mol.

L-Cystine MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Cys

102837
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Overview

Replacement Information

Key Spec Table

CAS #Empirical Formula
56-89-3C₆H₁₂N₂O₄S₂

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      Description
      Catalogue Number102837
      SynonymsCys
      References
      Product Information
      CAS number56-89-3
      EC number200-296-3
      Hill FormulaC₆H₁₂N₂O₄S₂
      Molar Mass240.30 g/mol
      HS Code2930 90 12
      Structure formula ImageStructure formula Image
      Quality LevelMQ100
      Applications
      ApplicationL-Cystine for biochemistry. CAS 56-89-3, molar mass 240.30 g/mol.
      Biological Information
      Physicochemical Information
      Density1.66 g/cm3 (20 °C)
      Melting Point261 - 262 °C (decomposition)
      Bulk density300 kg/m3
      Solubility0.19 g/l insoluble
      Dimensions
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      RTECSHA2690000
      Storage class10 - 13 Other liquids and solids
      WGKWGK 1 slightly hazardous to water
      Safety Information
      Product Usage Statements
      Storage and Shipping Information
      StorageStore at +2°C to +30°C.
      Packaging Information
      Transport Information
      Supplemental Information
      Specifications
      Assay (bromatometric, calculated on dried substance)99.0 - 101.0 %
      Identity (IR-spectrum)passes test
      Appearancewhite to almost white, fine-crystalline powder
      Appearance of solution (100 g/l, hydrochloric acid  2 mol/l)clear and not more intense in color than reference solution Y₇
      Spec. rotation (α 20/D, 20 g/l, hydrochloric acid 1 mol/l, previously dried substance)-225 to -215
      Chloride (Cl)≤ 200 ppm
      Sulfate (SO₄)≤ 500 ppm
      Heavy metals (as Pb)≤ 10 ppm
      As (Arsenic)≤ 5 ppm
      Ca (Calcium)≤ 10 ppm
      Co (Cobalt)≤ 5 ppm
      Fe (Iron)≤ 5 ppm
      K (Potassium)≤ 5 ppm
      Mg (Magnesium)≤ 5 ppm
      Na (Sodium)≤ 50 ppm
      Pb (Lead)≤ 5 ppm
      Zn (Zinc)≤ 5 ppm
      Ninhydrin - positive substances (LC) (largest single impurity)≤ 0.2 %
      Ninhydrin - positive substances (LC) (Sum of all impurities)≤ 0.5 %
      NH₄ (Ammonium)≤ 0.01 %
      Loss on drying (105 °C; 3 h)≤ 0.2 %
      Global Trade Item Number
      Catalogue Number GTIN
      1028370100 04022536037332