L-Cysteinesulfinic acid

Name: L-Cysteinesulfinic acid
Brand: Vaqora Chemicals
SKU: VQ-029969

About L-Cysteinesulfinic acid

L-Cysteinesulfinic acid (CAS 1115-65-7) is an impurity of Carbocisteine offered by Vaqora Chemicals. With the molecular formula C3H7NO4S, it has a molar mass of 153.16 g/mol. Systematically, it is named (2R)-2-amino-3-sulfinopropanoic acid. Alternative names: Sulfino-D-alanine and 3-Sulfino-L-alanine.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Carbocisteine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, L-Cysteinesulfinic acid is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Carbocisteine

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

Carbocisteine impurities

Specifications & identifiers

Chemical identifiers
Product name	L-Cysteinesulfinic acid
Catalogue No.	VQ-029969
CAS Number	1115-65-7
IUPAC name	(2R)-2-amino-3-sulfinopropanoic acid
Molecular formula	C₃H₇NO₄S
Molecular weight	153.16 g/mol
Exact mass	153.0096
Grade	Reference Standard
HSN code	38229090
InChIKey	ADVPTQAUNPRNPO-REOHCLBHSA-N
SMILES	C([C@@H](C(=O)O)N)S(=O)O
PubChem CID	1549098

Physical properties
Physical form	Solid
LogP (XLogP3)	-4.2
H-bond donors / acceptors	3 / 6
TPSA	120 Å²
Synonyms	Sulfino-D-alanine, 3-Sulfino-L-alanine, Cysteinesulfinic acid, L-, L-2-Amino-3-sulfinopropionic acid, 3-sulphino-L-alanine, 3-sulfinoalanine, L-Alanine, 3-sulfino-, L-cysteine sulphinic acid, Cysteinesulfinic acid, Cysteine sulfinate, S-sulfinocysteine

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?

The CAS Registry Number of L-Cysteinesulfinic acid is 1115-65-7. It is also known as Sulfino-D-alanine, 3-Sulfino-L-alanine, Cysteinesulfinic acid, L-.

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

L-Cysteinesulfinic acid has the molecular formula C3H7NO4S and a molecular weight of 153.16 g/mol. Its IUPAC name is (2R)-2-amino-3-sulfinopropanoic acid.

What is L-Cysteinesulfinic acid used for?

L-Cysteinesulfinic acid is supplied as a characterised reference material related to Carbocisteine. 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 can I order?

We supply L-Cysteinesulfinic acid in Reference Standard grade, 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?

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

Yes. L-Cysteinesulfinic acid 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.