L-Cysteine hydrochloride, 98%

Name: L-Cysteine hydrochloride, 98%
Brand: Vaqora Chemicals
SKU: VQ-002398

About L-Cysteine hydrochloride, 98%

Listed under CAS 52-89-1, L-Cysteine hydrochloride is a peptide synthesis reagent available from Vaqora Chemicals with a typical assay of 98%. Its molecular formula is C3H8ClNO2S and its molecular weight is 157.62 g/mol. The IUPAC name is (2R)-2-amino-3-sulfanylpropanoic acid. Hydrochloride. Alternative names: Cystein chloride and cysteine-hcl.

The material typically appears as white powder or crystals. Reported physical data include a melting point of 178 °C(dec.). Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

Key uses span peptide coupling, solid-phase peptide synthesis and bioconjugation. Buyers come mainly from academic and industrial research and diagnostics and biotechnology.

Vaqora Chemicals supplies L-Cysteine hydrochloride in 25 g, 100 g, 500 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Peptide coupling
Solid-phase peptide synthesis
Bioconjugation

Industries

Specifications & identifiers

Chemical identifiers
Product name	L-Cysteine hydrochloride, 98%
Catalogue No.	VQ-002398
CAS Number	52-89-1
IUPAC name	(2R)-2-amino-3-sulfanylpropanoic acid;hydrochloride
Molecular formula	C₃H₈ClNO₂S
Molecular weight	157.62 g/mol
Exact mass	156.9964
Purity / assay	98%
HSN code	29151290
InChIKey	IFQSXNOEEPCSLW-DKWTVANSSA-N
SMILES	C([C@@H](C(=O)O)N)S.Cl
PubChem CID	60960

Physical properties
Physical form	Crystalline
Appearance	White powder or crystals
Melting point	178 °C(dec.)
H-bond donors / acceptors	4 / 4
TPSA	64.3 Å²
Synonyms	(2R)-2-Amino-3-sulfanylpropanoic acid hydrochloride, Cystein chloride, cysteine-hcl, 3-Mercaptoalanine hydrochloride, Cysteine chlorhydrate, Cysteine hydrochloride (anhydrous), Cysteine hydrochloride anhydrous, WR 348, Cysteine (as hydrochloride), L-Cysteine hydrochloride anhydrous, l-Cysteine.HCl, L-Cysteine, hydrochloride

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements: P264 + P265, P280, P305 + P351 + P338, P337 + P317

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of L-Cysteine hydrochloride, 98%?

The CAS Registry Number of L-Cysteine hydrochloride, 98% is 52-89-1. It is also known as (2R)-2-Amino-3-sulfanylpropanoic acid hydrochloride, Cystein chloride, cysteine-hcl.

What is the molecular formula and molecular weight of L-Cysteine hydrochloride, 98%?

L-Cysteine hydrochloride, 98% has the molecular formula C3H8ClNO2S and a molecular weight of 157.62 g/mol.

Which grade and pack sizes of L-Cysteine hydrochloride, 98% can I order?

We supply L-Cysteine hydrochloride, 98% in (98%) grade, in 25 g, 100 g, 500 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with L-Cysteine hydrochloride, 98%?

Yes. Every lot of L-Cysteine hydrochloride, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can L-Cysteine hydrochloride, 98% be shipped internationally?

Yes. L-Cysteine hydrochloride, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.