L-Cysteinesulfinic Acid Monohydrate

Name: L-Cysteinesulfinic Acid Monohydrate
Brand: Vaqora Chemicals
SKU: VQ-047689

About L-Cysteinesulfinic Acid Monohydrate

L-Cysteinesulfinic Acid Monohydrate (CAS 207121-48-0) is a process intermediate or related compound of Carbocysteine offered by Vaqora Chemicals. Formula C3H9NO5S, molecular weight 171.17 g/mol. Alternative names: L-cysteine Sulfinilic Acid Monohydrate and L-Alanine, 3-sulfino-, hydrate (1:1).

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is a process intermediate or related compound in the synthesis of Carbocysteine, useful for route development, impurity fate-and-purge studies and analytical method development. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer L-Cysteinesulfinic Acid Monohydrate in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Carbocysteine

View every impurity, metabolite and intermediate we list for Carbocysteine.

Carbocysteine impurities

Specifications & identifiers

Chemical identifiers
Product name	L-Cysteinesulfinic Acid Monohydrate
Catalogue No.	VQ-047689
CAS Number	207121-48-0
IUPAC name	(2R)-2-amino-3-sulfinopropanoic acid;hydrate
Molecular formula	C₃H₉NO₅S
Molecular weight	171.17 g/mol
Exact mass	171.0201
InChIKey	YQIXTMZYGQXTCZ-DKWTVANSSA-N
SMILES	C([C@@H](C(=O)O)N)S(=O)O.O
PubChem CID	16211766

Physical properties
Physical form	Solid
H-bond donors / acceptors	4 / 7
TPSA	121 Å²
Synonyms	L-cysteine Sulfinilic Acid Monohydrate, L-Alanine, 3-sulfino-, hydrate (1:1), Sulfino-L-alanine hydrate, 3-Sulfino-L-alanine Monohydrate, Sulfino-L-Alanine Monohydrate, L-Cysteinesulfinic Acid (hydrate), L-Cysteinesulphinic acid monohydrate, 3-Sulfino-L-alanine--water (1/1)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

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-Cysteinesulfinic Acid Monohydrate?

The CAS Registry Number of L-Cysteinesulfinic Acid Monohydrate is 207121-48-0. It is also known as L-cysteine Sulfinilic Acid Monohydrate, L-Alanine, 3-sulfino-, hydrate (1:1), Sulfino-L-alanine hydrate.

What is the molecular formula and molecular weight of L-Cysteinesulfinic Acid Monohydrate?

L-Cysteinesulfinic Acid Monohydrate has the molecular formula C3H9NO5S and a molecular weight of 171.17 g/mol.

What is L-Cysteinesulfinic Acid Monohydrate used for?

L-Cysteinesulfinic Acid Monohydrate is supplied as a characterised reference material related to Carbocysteine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of L-Cysteinesulfinic Acid Monohydrate can I order?

We supply L-Cysteinesulfinic Acid Monohydrate, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with L-Cysteinesulfinic Acid Monohydrate?

Yes. Every lot of L-Cysteinesulfinic Acid Monohydrate 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-Cysteinesulfinic Acid Monohydrate be shipped internationally?

Yes. L-Cysteinesulfinic Acid Monohydrate 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.