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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

Products

Catalogue NumberPackaging Qty/Pack
1.02837.0025 Plastic bottle 25 g
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
Safety Information
Product Usage Statements
Storage and Shipping Information
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