MilliporeSigma
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W326305

Sigma-Aldrich

L-Cysteine

≥97%, FG

Synonym(s):
(R)-2-Amino-3-mercaptopropionic acid
Linear Formula:
HSCH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
121.16
FEMA Number:
3263
Beilstein:
1721408
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
Flavis number:
17.033
NACRES:
NA.21

grade

FG
Halal

Quality Level

reg. compliance

EU Regulation 1334/2008 & 872/2012
FDA 21 CFR 172.320
FDA 21 CFR 184.1271

assay

≥97%

optical activity

[α]26/D +8.0 to +9.5°, c = 2 in 5 M HCl

mp

240 °C (dec.) (lit.)

solubility

H2O: 25 mg/mL

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

Organoleptic

sulfurous

SMILES string

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

InChI

1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1

InChI key

XUJNEKJLAYXESH-REOHCLBHSA-N

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General description

L-cysteine is a sulfur-containing amino acid.[57] It can undergo Maillard reaction with reducing sugars to form volatile meat flavored compounds.[38]

Packaging

100 g in poly bottle
1 kg in poly bottle
5 kg in fiber drum

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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