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L-Cystine - CAS 56-89-3 - Calbiochem

Synonym(s):
L-Cystine - CAS 56-89-3 - Calbiochem, (Cys)₂
Empirical Formula (Hill Notation):
C6H12N2O4S2
CAS Number:
Molecular Weight:
240.30
MDL number:

assay

≥98% (Macro-Kjeldahl method)

Quality Level

form

crystalline powder
crystals

optical activity

[α]20/D -218 to -224°, c = 2 in 1 M HCl

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

anion traces

chloride (Cl-): ≤0.02%
sulfate (SO42-): ≤0.02%

cation traces

As: ≤1 ppm
NH4+: ≤0.02%
heavy metals: ≤10 ppm

shipped in

ambient

storage temp.

15-25°C

InChI

1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1

InChI key

LEVWYRKDKASIDU-IMJSIDKUSA-N

General description

Non-essential amino acid for human development. Has an optimal pH of 5.0-6.5.

Packaging

25 g in Glass bottle

Warning

Toxicity: Standard Handling (A)

Preparation Note

Solubility may be enhanced by lowering the pH to <2.0 or raising the pH to >8.0.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Quality

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