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Amino Acids & Derivatives

L-Cystine

RA001192 CAS 56-89-3 Biochemistry

Identity

Product code
RA001192
CAS number
56-89-3
Grade
Biochemistry
Purity
98.5%
Molecular formula
C6H12N2O4S2
Molecular weight
240.30

Classification

Applications
Biochemistry

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour Colorless crystalline —
Melting point/ Freezing point [°C] Min 240 °C °C
Solubility in water [% weight] Soluble in water —

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit
Appearance White to off white powder —
Iron (Fe) Max 0.002 % %
Lead (Pb) Max 0.001 % %
Assay 98.5 - 101 % %
Chloride (Cl) Max 0.05 % %
Sulphate (SO4) Max 0.03 % %
Ammonium (NH4) Max 0.02 % %
Ninhydrin positive substance Max 0.2 % %
Loss on drying (110 °C) Max 0.5 % %
Sulphated ash Max 0.1 % %

Packaging

Pack size SKU
25 g RA001192-PK-25G
100 g RA001192-PK-100G
500 g RA001192-PK-500G