Skip to Content
Merck
All Photos(1)

Key Documents

2470

Millipore

L-Cystine

Synonym(s):

L-Cystine, (Cys)₂

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C6H12N2O4S2
CAS Number:
56-89-3
Molecular Weight:
240.30
MDL number:
MFCD00064228
UNSPSC Code:
12352209
NACRES:
NA.25
Pricing and availability is not currently available.

Assay

≥98% (Macro-Kjeldahl method)

Quality Level

100

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

SMILES string

S(SC[C@H]([N+H3])C(=O)[O-])C[C@H]([N+H3])C(=O)[O-]

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.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Gregory R Kardos et al.
Frontiers in oncology, 10, 834-834 (2020-07-09)
Increased protein synthesis is a key process in melanoma, which is regulated by the ALDH18A1 gene encoding pyrroline-5-carboxylate synthase (P5CS). P5CS is involved in proline biosynthesis and targeting ALDH18A1 has previously been shown to inhibit melanoma development by decreasing intracellular

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service