L-Cysteine CAS: 52-90-4 - 52-90-4

L-Cysteine CAS: 52-90-4

Product Name:L-Cysteine
Introduction alias: L-A-amino-b-mercapto propionic acid
CAS: 52-90-4
EINECS No.: 200-158-2
Molecular Weight:121.16
Molecular Formula:C3H7NO2S
Identification: Infrared Spectroscopy
Specific Rotation: +8.3 ° ~ +9.5 °
Dissolved condition: ≥ 95.0%
Content: 98.0% to 101.5%
Heavy metals: ≤ 10ppm
Chlorides: ≤ 0.04%
Arsenic salt: ≤ 1ppm
Loss on drying: ≤ 0.5%
Residue on ignition: ≤ 0.1%
PH: 4.5 to 5.5
Molysite: ≤ 10ppm
Ammonium salt: ≤ 0.02%
Sulfates: ≤ 0.03%
Packing: 25kg / barrel