L-Cystine Disodium CAS No: 64704-23-0, 199329-53-8

Availability: In Stock

Description

 

CAS Registry Number 64704-23-0, 199329-53-8
Name L-Cystine Disodium Salt
Synonyms
Molecular Formula C6H10N2OS2Na2
Molecular Weight 302.30
Molecular Structure

Specification

 

Test C7123, Ultra Pure C7125, Ultra BioPure
Price
Appearance White to off white powder White to off white powder
Assay (by titration, on dried basis) ≥ 98.0% ≥ 98.0%
Solubility (1% solution in H2O) Clear, complete and colorless Clear, complete and colorless
Identification (by IR) Conforms to structure Conforms to structure
Specific Rotation -168.5º to -176.9º -168.5º to -178.9º
Loss on Drying (110°C for 3 hours) ≤ 6.6% ≤ 6.6%
Water (KF) ≤ 8.0% ≤ 8.0%
pH (1% solution in water) 9.5 – 11.0 9.5 – 11.0
Heavy Metals (Lead) ≤ 0.0020% ≤ 0.0020%
Biological Impurity Testing
Test C7123, Ultra Pure C7125, Ultra BioPur
Endotoxin (0.1% solution in H2O) ≤ 0.04 EU/mL
Bioburden ≤ 100 CFU/g
Specification Sheet
Specification Sheet L-Cystine Disodium Spec L-Cystine Disodium Spec

MSDS

Material Safety Data Sheet