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102838 L-Cysteín

L-Cysteine for biochemistry. CAS 52-90-4, pH 4.5 - 5.5 (100 g/l, H₂O, 20 °C).

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

Synonyms: a-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid

102838
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Overview

Replacement Information

Key Spec Table

CAS #Empirical Formula
52-90-4C₃H₇N O₂S

Products

Catalogue NumberPackaging Qty/Pack
1028380025 Plastová flaša 25 g
1028380100 Plastová flaša 100 g
1028381000 Plastová flaša 1 kg
1028389010 Plastový sud 10 kg
Description
Catalogue Number102838
Synonymsa-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid
References
Product Information
CAS number52-90-4
EC number200-158-2
Hill FormulaC₃H₇N O₂S
Molar Mass121.16 g/mol
HS Code2930 90 12
Structure formula ImageStructure formula Image
Quality LevelMQ100
Applications
ApplicationL-Cysteine for biochemistry. CAS 52-90-4, pH 4.5 - 5.5 (100 g/l, H₂O, 20 °C).
Biological Information
Physicochemical Information
Density1.66 g/cm3 (45 °C)
Ignition temperature420 °C
Melting Point>203 °C
pH value4.5 - 5.5 (100 g/l, H₂O, 20 °C)
Bulk density300 kg/m3
Solubility280 g/l
Dimensions
Materials Information
Toxicological Information
LD 50 oralLD50 Potkan 1890 mg/kg
Safety Information according to GHS
RTECSHA1600000
Storage class10 - 13 Iné kvapaliny a tuhé látky
WGKWGK 1 mierne ohrozujúce vody
Disposal3
Relatívne nereaktívne organické reagencie je potrebné zhromaždovať v nádobe A. Ak sú halogénované, je potrebné ich zhromaždovať v nádobe B. Pre tuhé zvyšky použite nádobu C.
Safety Information
Categories of dangerškodlivá
Product Usage Statements
Storage and Shipping Information
StorageSkladujte pri teplotách pod +30°C.
Packaging Information
Transport Information
Supplemental Information
Specifications
Assay (perchloric acid titration, calculated on dried substance)≥ 99.0
Identity (IR-spectrum)passes test
Appearancecolorless to white, needle-shaped crystals
Appearance of solution (100 g/l, hydrochloric acid  2 mol/l)clear and colorless
Spec. rotation (α 20/D, 80 g/l, hydrochloric acid 1 mol/l, calc. on dried substance)+8.3 to +9.5
pH (25 g/l; CO₂-free water)4.5 - 5.5
Chloride (Cl)≤ 0.04 %
Sulfate (SO₄)≤ 0.03 %
Heavy metals (as Pb)≤ 0.001 %
As (Arsenic)≤ 0.0001 %
Ca (Calcium)≤ 0.001 %
Co (Cobalt)≤ 0.0005 %
Fe (Iron)≤ 0.001 %
K (Potassium)≤ 0.0005 %
Mg (Magnesium)≤ 0.0005 %
Na (Sodium)≤ 0.01 %
NH₄ (Ammonium)≤ 0.02 %
Zn (Zinc)≤ 0.0005 %
Foreign amino acids≤ 0.5 %
Other ninhydrine positive substances≤ 0.1 %
Loss on drying (105 °C; 3 h)≤ 0.5 %
Global Trade Item Number
Catalogue Number GTIN
1028380025 04022536037363
1028380100 04022536037370
1028381000 04022536037387
1028389010 04022536692678