L-Cysteine, CAS# 52-90-4, is an amino acid commonly sold in dietary supplement form. Also found naturally in the human body, L-cysteine is available in many foods as well. Use of L-cysteine supplements is said to offer a variety of health benefits.

Healthchem Ltd has been supplying and exporting L-Cysteine from China for more than 10 years, Please be assured to buy L-Cysteine at Healthchem. Any inquiry or problems,please feel free to send us email: info@healthchem.com.cn or leave message on the Healthchem web. Healthchem ensure you can buy this product with a good price from us. We will reply you within 1 working day. 

Product Name: L-Cysteine

E No: E920
CAS No: 52-90-4
HS Code: 2930909099
Specification: 100%
Packing:  25kg/drum
Place of origin :China
QC:Haccp, Kosher, Hala,Iso
Payment terms: T/T or L/C
Port of dispapch:Shanghai,Qindao

Applications: 

1.Food grade: flour improver, nutritional supplement, antioxidants.
2.Medicine grade: In pharmacy, Cysteine is used in the treatment of radioactive drugs poison, heavy metal poison, toxic hepatitis, serum sickness, and can prevent liver degeneration.
3.Comestic grade: whiting skin, dissolving cutin, anti-aging. The component of cosmetics marcel extract, sunscreen, germinal perfume, hair essence.

Item	USP28
Assay	99.0~100.5%
pH	1.5~2.1
Specific rotation[a]D020	+5.5°~+8.9°
Chloride(Cl)	19.8~20.8%
Ammonium(NH4)	≤0.02%
Sulfate(SO4)	≤0.03%
Iron(Fe)	≤10ppm
Heavy metals(Pb)	≤10ppm
Arsenic	≤1ppm
Other amino acids	Not detectable
Loss on drying	0.5%
Residue on ignition	≤0.10%