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L-Cystine 98.5% For Biochemistry | 00925 Pallav Chemicals | MSDs COA

Home > Pallav Chemicals > Amino Acids & Derivatives > L-Cystine 98.5% For Biochemistry

L-Cystine 98.5% For Biochemistry
(R,R)-3,3'-Dithiobis(2-aminopropionicacid)

Product Code.
 00925
Grade
Purity
 98.5%
CAS No.
 56-89-3
Molecular Formula
 C6H12N2O4S2
Molecular Weight
 240.30
H.S.Code
 2930.90400
Shelf Life
 60 Months
MSDS COAs

Physical Properties

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

Packaging

Specification

Appearance
White to off white powder
Assay
98.5 - 101%
Specific optical rotation ([?]20/D; 20 g/L in 1 mol/L HCl; on dried substance)
-218 to -224°
Chloride (Cl)
Max 0.05%
Sulphate (SO4)
Max 0.03%
Ammonium (NH4)
Max 0.02%
Ninhydrin positive substance
Max 0.2%
Loss on dryig (at 110°C)
Max 0.5%
Sulphated ash
Max 0.1%
Iron (Fe)
Max 0.002%
Lead (Pb)
Max 0.001%

Safety Information and Hazard Symbols