L-cysteic acid

DB03661ExperimentalSmall molecule

L-cysteic acid is a beta-sulfoalanine. It is an amino acid with a C-terminal sulfonic acid group which has been isolated from human hair oxidized with permanganate. It occurs normally in... It occurs normally in the outer part of the sheep's fleece, where the wool is exposed to light and weather.

Chemical structure of L-cysteic acid
Formula / weight
C3H7NO5S · 169.156 g/mol (avg)
Also known as
(2R)-2-amino-3-sulfopropanoic acid · 2-Amino-3-sulfopropionic acid · 3-sulfo-L-alanine · 3-Sulfoalanine · Cysteinesulfonic acid
Code names
NSC-254030

Resolves to

Structure
InChIKeyXVOYSCVBGLVSOL-REOHCLBHSA-NSMILESN[C@@H](CS(O)(=O)=O)C(O)=O

What you can answer from here — as of September 16, 2026

16Protein targetsEach mapped to UniProt, with action and pharmacological action
Listed above
12+ReferencesStructured and connected to the statements they support
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