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2470

L-Cystine

Name: L-Cystine
Brand: MM

Synonym(s):

L-Cystine, (Cys)₂

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About This Item

Empirical Formula (Hill Notation):

C₆H₁₂N₂O₄S₂

CAS Number:

56-89-3

Molecular Weight:

240.30

UNSPSC Code:

12352209

NACRES:

NA.25

MDL number:

MFCD00064228

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Properties

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 (SO₄^2-): ≤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

Description

General description

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

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

Disclaimer

Toxicity: Standard Handling (A)

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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Salubrinal in Combination With 4E1RCat Synergistically Impairs Melanoma Development by Disrupting the Protein Synthetic Machinery.

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

Global Trade Item Number

SKU	GTIN
B4589-5G	04061833429976
B4589-100G	04061838352538
2470-25GM	07790788048945