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S-Carboxymethyl-L-Cysteine

Product Name: S-Carboxymethyl-L-Cysteine

CAS NO.:638-23-3

Standard: EP5

Test Items

Standard

Identification :

Appearance :

 

Appearance of solution:

 

Specific rotation:

Ninhydrin-positive substances:

Chlorides:

Sulfates:

Loss on drying:

Sulphated ash:

Assay:

PH

Conforms (As per EP5)

A white or almost white crystalline

powder or colourless crystals

Clear and not more intensely coloured

than reference solution Y 7

-32.5° to -35.5°

Conforms (As per EP5)

≤0.15%

≤300ppm

≤0.5%

≤0.3%

98.5% to 101.0% , on dry

2.8 to 3.0

 
   
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