L-Cysteinesulfinic acid

Name: L-Cysteinesulfinic acid
Brand: Zemixal
SKU: ZX-028776

Reference StandardAvailable on request

Buy L-Cysteinesulfinic acid (CAS 1115-65-7) from Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.

Pack sizes

L-Cysteinesulfinic acid chemical structure

CAS number1115-65-7

FormulaC₃H₇NO₄S

Molar mass153.16 g/mol

Physical formSolid

HS code38229090

InChIKeyADVPTQAUNPRNPO-REOHCLBHSA-N

IUPAC name(2R)-2-amino-3-sulfinopropanoic acid

About L-Cysteinesulfinic acid

L-Cysteinesulfinic acid is supplied by Zemixal as a characterised reference material for Carbocisteine analysis. Key data (Reference Standard): CAS 1115-65-7, formula C3H7NO4S and molar mass 153.16 g/mol. It is handled as a solid.

Use cases we see most often

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

Handling and storage

It carries the GHS signal word Warning (H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Carbocisteine

See every impurity, metabolite and related compound we list for this API.

Carbocisteine standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of L-Cysteinesulfinic acid
Product name	L-Cysteinesulfinic acid
Catalogue number	ZX-028776
CAS number	1115-65-7
IUPAC name	(2R)-2-amino-3-sulfinopropanoic acid
Molecular formula	C₃H₇NO₄S
Molar mass	153.16 g/mol
Exact mass	153.0096
Grade	Reference Standard
Physical form	Solid
XLogP3	-4.2
H-bond donors / acceptors	3 / 6
Topological polar surface area	120 Å²
HS code	38229090
InChIKey	ADVPTQAUNPRNPO-REOHCLBHSA-N
SMILES	C([C@@H](C(=O)O)N)S(=O)O
PubChem CID	1549098
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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Irritant or harmful

Signal word Warning

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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of L-Cysteinesulfinic acid
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about L-Cysteinesulfinic acid

Which CAS number identifies L-Cysteinesulfinic acid?

L-Cysteinesulfinic acid is registered under CAS 1115-65-7. You may also see it listed as Sulfino-D-alanine, 3-Sulfino-L-alanine, Cysteinesulfinic acid, L-. Our catalogue number for this item is ZX-028776.

What are the formula and molar mass of L-Cysteinesulfinic acid?

For L-Cysteinesulfinic acid, its formula is C3H7NO4S and its molar mass is 153.16 g/mol. The systematic (IUPAC) name is (2R)-2-amino-3-sulfinopropanoic acid. InChIKey ADVPTQAUNPRNPO-REOHCLBHSA-N lets you match it in any structure database.

How is L-Cysteinesulfinic acid used in pharmaceutical QC?

L-Cysteinesulfinic acid is a characterised reference material linked to Carbocisteine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for L-Cysteinesulfinic acid?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with L-Cysteinesulfinic acid?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship L-Cysteinesulfinic acid to my country?

Yes. Because L-Cysteinesulfinic acid is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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