Skip to Content
Merck
CN

Key Documents

View All Documentation

W326305

L-Cysteine

≥97%, FG

Synonym(s):

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

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
HSCH2CH(NH2)CO2H
CAS Number:
52-90-4
Molecular Weight:
121.16
FEMA Number:
3263
UNSPSC Code:
12164502
eCl@ss:
32160406
PubChem Substance ID:
24901592
Flavis number:
17.033
EC Number:
200-158-2
NACRES:
NA.21
MDL number:
MFCD00064306
Beilstein/REAXYS Number:
1721408
Organoleptic:
sulfurous
Grade:
FG, Halal
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Level

300

grade

FG, Halal

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

General description

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

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Still not finding the right product?

Explore all of our products under L-Cysteine

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBN7749
STBJ8532
STBJ3975
STBH2586
STBG4139V

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

Articles

膳食抗氧化剂

抗氧化剂可保护生物系统免受含氧自由基和氧化还原过渡金属离子（如铁、铜和镉）引起的氧化损伤。

Dietary Antioxidants

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

Related Content

Volatile compounds produced by the reaction of L-cysteine or L-cystine with carbonyl compounds.
Kato S, et al.
Agricultural and Biological Chemistry, 37(3), 539-544 (1973)
Antioxidant effects of sulfur-containing amino acids
Atmaca G
Yonsei Medical Journal, 45, 776-788 (2004)
Nicholas Kwiatkowski et al.
Nature, 511(7511), 616-620 (2014-07-22)
Tumour oncogenes include transcription factors that co-opt the general transcriptional machinery to sustain the oncogenic state, but direct pharmacological inhibition of transcription factors has so far proven difficult. However, the transcriptional machinery contains various enzymatic cofactors that can be targeted
View All Related Papers

Global Trade Item Number

SKUGTIN
W326305-5KG04061834397441
W326305-SAMPLE04061835566846
W326305-100G04061837528651
W326305-1KG04061835566839