CAS No:52-90-4 (2R)-2-amino-3-sulfanylpropanoic acid

L-Cysteine base

CAS No.: 52-90-4
Min quantity: 5000 Kilograms
Weight: 121.15818
Formula: C₃H₇NO₂S
Place of Orign: wuhan ,Hubei,China

Contact:Ms.David zhang

Supplier Details

Hubei Yuancheng Saichuang Technology Co., Ltd.
China
Contact:Ms.David zhang
Tel:86-027-50756244
Total Annual Sales Volume:
Number of Employees:101 - 500 People
Business Type:Manufacturer,Trading Company
Main Markets:North America,Southeast Asia,South America,Eastern Asia,Eastern Europe

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Item specifics

Product Name.:L-Cysteine base
CAS No: 52-90-4
Weight: 121.15818
Formula: C₃H₇NO₂S
Melting Point: 220 ºC
Boiling Point: 293.9 °C at 760 mmHg
Density: 1.334 g/cm³

Details

Cas No.:52-90-4

Quality Standard: AJI97

Description: white crystals or crystalline powder.

Solubility (H2O, g/100g): about 16(20°)

Specific rotation: +8.3 to +9.5°

State of solution(transmittance): Not less than 95.0%

Chloride: Not more than 0.04%

Ammonium: Not more than 0.02%

Sulfate: Not more than 0.030%

Iron: Not more than 10ppm

Heavy metals(Pb): Not more than 10ppm

Arsenic: Not more than 1ppm

Other Amino Acids: conforms

Loss on drying: Not more than 0.5%

Residue on ignition(sulfated): Not more than 0.10%

Assay: 98.0 to 101.0%

PH: 4.5 to 5.5

Storage: Preserve in tight containers at controlled room temperature.

Recommended limit: 1 year

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L-Cysteine base

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L-Alanine

L-Tyrosine,O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, monosodium salt, hydrate (9CI)

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