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Sku CI00437_5_KG
Chem Impex
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Product Information

Product Name
L-Cysteine
Brand Name
Chem Impex
Product Number
00437
CAS
52-90-4
Certificate of Analysis (COA)​
COA not found

General Information

PubChem CID
5862
IUPAC Name
(2R)-2-amino-3-sulfanylpropanoic acid
InChI Key
XUJNEKJLAYXESH-REOHCLBHSA-N
SMILES
C(C@@H(C(=O)O)N)S

Application

L-Cysteine is widely utilized in research focused on:

Antioxidant Production: It serves as a precursor for the synthesis of glutathione, a powerful antioxidant that helps protect cells from oxidative stress, making it valuable in health and wellness industries.

Food Industry: Used as a flavor enhancer and dough conditioner, L-Cysteine improves the texture and shelf-life of baked goods, appealing to food manufacturers looking for quality improvements.

Pharmaceutical Applications: It is incorporated in formulations to support respiratory health by breaking down mucus, which is beneficial for patients with chronic obstructive pulmonary disease (COPD) and cystic fibrosis.

Cosmetic Products: L-Cysteine is found in skin care formulations for its skin-repairing properties, helping to improve skin texture and reduce signs of aging, making it popular among cosmetic brands.

Research in Biochemistry: It is widely used in studies involving protein structure and function due to its unique thiol group, which can form disulfide bonds, aiding researchers in understanding protein interactions.

References

Surface-enhanced Raman spectroscopy based on 2,3-naphthalenedicarboxaldehyde derivative reagent for highly sensitive detection of cysteine and homocysteine

Publication Name: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Publication Date: 2025-11-15
DOI: 10.1016/j.saa.2025.126395

Insight into Cys and its derivatives metabolism in living system with 3D-printed portable smartphone platform via multifunctional fluorescent probe

Publication Name: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Publication Date: 2025-11-05
DOI: 10.1016/j.saa.2025.126324

Target-triggered dual suppression of self-enhanced ECL sensor for sensitive detection of l-Cysteine

Publication Name: Talanta
Publication Date: 2025-11-01
DOI: 10.1016/j.talanta.2025.128216

One-pot synthesis of fluorescent nanoprobes based on D-cys-based CDs and quantitative detection of lysine enantiomers

Publication Name: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Publication Date: 2025-10-15
DOI: 10.1016/j.saa.2025.126143

Developing an aurone-based colorimetric fluorescent probe for fast cysteine sensing in foods, test strips and biological imaging

Publication Name: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Publication Date: 2025-10-05
DOI: 10.1016/j.saa.2025.126226