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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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      1028371000
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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
          1028371000 04022536037349