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Product name:L-Cystine

Product introduction

Property: L-Cystine hydrochloride is white crystals, dissolves in dilute hydrochloric acid, mainly used in pharmaceutical intermediates,biochemical study,life sciences,etc..                                          

Appearance:  White crystalline powder

Cas No.:56-89-3

EINECS No.: 200-296-3

Molecular Formula:  C6H12N2O4S2

Molecular Weight: 240.3

Specification:

 

Items

Standard

Appearance

White Crystalline powder

Identity

Corresponds

Assay

98.5~101.0% 

Transmittance,   % 

≥95.0

Specific Rotation [a] D20°

+8.3°~+9.5°

Chloride   (as Cl), %

≤0.04

Iron   (as Fe), %

 ≤0.001

pH   Value

    4.5~5.5

Heavy metals (as Pb)

≤0.001

 

Storage Condition:  Stored in dry, clean and ventilated places. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. 

Package: This product is contained in a double-layer package, the inner layer being a sealed nonpoisonous polyethylene bag or alumin, and the outer layer being a paper board barrel. Each barrel contains a net weight of 25kg. Packages may be arranged in accordance with customer’s requirements.      

Application:L- Cystine helps strengthen the immune system, reduce damage from free-radicals, repair RNA-DNA in the cells and assimilation of vitamin B6. L-Cystine is closely related to the amino acid, L-Cysteine. L-Cystine aids in preventing the side effects of chemotherapy and radiation.


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