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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
1028371000 Plastic bottle 1 kg
1028379010 Plastic drum 10 kg
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
1028371000 04022536037349
1028379010 04022536692661