Product Name:

L-Cystine

WCode:

12-008

CAS No.

56-89-3

Molecular Formula:

(SCH2CH(NH2)CO2H)2

Molecular Weight:

240.30

 

 

Sales Specification

 

Quality Standard:

AJI88

Specific Rotation (a) D200:

-215 ~ -225° C

State of Solution (Transmittance):

98.0% Min

Chloride (Cl):

0.02% Max

Ammonium (NH4):

0.02% Max

Sulfate (SO4):

0.02% Max

Heavy Metals (Pb):

10 PPM Max

Arsenic (As2O3):

1 PPM Max

Other Amino Acids:

Chromatographically not detectable

Loss on Drying:

0.20% Max

Residue on Ignition:

0.10% Max

Assay:

98.5 ~ 100.5%

Iron (Fe):

10 PPM Max

PH:

5.0~6.5

 

Packing

In 25 KG paper cardboard drum