Skip to Content
Merck
All Photos(1)

Key Documents

30170

Sigma-Aldrich

L-Cysteic acid monohydrate

≥99.0% (T), suitable for LC/MS

Synonym(s):

(R)-2-Amino-3-sulfopropionic acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
HO3SCH2CH(NH2)CO2H·H2O
CAS Number:
Molecular Weight:
187.17
Beilstein:
3714036
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.26

Product Name

L-Cysteic acid monohydrate, ≥99.0% (T)

Quality Level

Assay

≥99.0% (T)

form

powder or crystals

optical activity

[α]20/D +7.5±0.5°, c = 5% in H2O

technique(s)

LC/MS: suitable

color

white to faint yellow

mp

267 °C (dec.) (lit.)

solubility

H2O: soluble

application(s)

peptide synthesis

SMILES string

[H]O[H].N[C@@H](CS(O)(=O)=O)C(O)=O

InChI

1S/C3H7NO5S.H2O/c4-2(3(5)6)1-10(7,8)9;/h2H,1,4H2,(H,5,6)(H,7,8,9);1H2/t2-;/m0./s1

InChI key

PCPIXZZGBZWHJO-DKWTVANSSA-N

Looking for similar products? Visit Product Comparison Guide

Application

Internal standard for amino acid analysis.

Biochem/physiol Actions

L-Cysteic acid is a sulfur containing aspartate analogue that may be used as a competitive inhibitor of the bacterial aspartate:alanine antiporter (AspT) exchange of aspartate and in other aspartate biological systems. L-Cysteic acid is used in monomeric surfactant development.
L-cysteic acid is an oxidation product of L-cysteine. L-Cysteic acid, an analogue of cysteine sulfinic acid, may be used in studies of excitatory amino acids in the brain, such as those that bind to cysteine sulfinic acid receptors. L-Cysteic acid is a useful agonist at several rat metabotropic glutamate receptors (mGluRs).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

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

Visit the Document Library

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