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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 Point210 °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
              1.02837.0025 04022536037325
              1.02837.1000 04022536037349
              1.02837.9010 04022536692661