Key Documents

View All Documentation

C7602

L-Cystine

Name: <SC>L</SC>-Cystine
Brand: SIGMA

98.5-101.0%, suitable for cell culture, BioXtra, non-animal source

Synonym(s):

(R,R)-3,3′-Dithiobis(2-aminopropionic acid)

Select a Size

Change View

About This Item

Linear Formula:

[-SCH₂CH(NH₂)CO₂H]₂

CAS Number:

56-89-3

Molecular Weight:

240.30

NACRES:

NA.26

PubChem Substance ID:

24892973

eCl@ss:

32160406

UNSPSC Code:

12352209

EC Number:

200-296-3

MDL number:

MFCD00064228

Beilstein/REAXYS Number:

1728094

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Product Name

L-Cystine, from non-animal source, meets EP testing specifications, suitable for cell culture, 98.5-101.0%

biological source

non-animal source

Quality Level

200

agency

meets EP testing specifications

product line

BioXtra

assay

98.5-101.0%

form

powder

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

color

white to off-white

mp

>240 °C (dec.) (lit.)

solubility

1 M HCl: 100 mg/mL

application(s)

peptide synthesis

SMILES string

N[C@@H](CSSC[C@H](N)C(O)=O)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

Application

L-Cystine has been used as a supplement in astroglial-conditioned media to culture cerebral astroglia. It has been used in several techniques, such as HPLC-FD, UHPLC-UV, UHPLC-MS, and triple quadrupole tandem mass spectrometry (UHPLC-MS/MS), to differentiate BMAA (β-N-methylamino-L-alanine), the cyanobacterial neurotoxin, from other diamino acids.
L-Cystine has been used as a supplement in oocyte culture media to improve oocyte maturation and parthenogenesis of embryonic development.

Biochem/physiol Actions

Cystinuria is characterized with renal transport and excretion of L-Cystine. Cysteine is one of the functional amino acids that are associated with growth, reproduction, maintenance and immunity. Cysteine is a source of disulfide linkage in protein and is associated with sulfur transport. At physiological pH, cysteine undergoes rapid oxidation to form cystine. Reduced availability of cysteine or cystine, influences leukocyte metabolism. L-Cystine is necessary for oxygen production and LDL (low density lipoprotein) modification by arterial smooth muscle cells.

Still not finding the right product?

Explore all of our products under L-Cystine

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

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

Visit the Document Library