S-Carbamoyl-L-cysteine

Name: S-Carbamoyl-L-cysteine
Brand: Zemixal
SKU: ZX-038785

Reference StandardAvailable on request

Buy S-Carbamoyl-L-cysteine (CAS 5745-86-8) from Zemixal: C4H8N2O3S, COA and SDS with every lot, worldwide shipping. Part of our API Impurities range.

Pack sizes

S-Carbamoyl-L-cysteine chemical structure

CAS number5745-86-8

FormulaC₄H₈N₂O₃S

Molar mass164.19 g/mol

Physical formSolid

HS code38229090

InChIKeyYOAUVDYBDJTJJP-REOHCLBHSA-N

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

About S-Carbamoyl-L-cysteine

Analytical teams working on Acetylcysteine use S-Carbamoyl-L-cysteine as a qualified comparison standard. Key data (Reference Standard): CAS 5745-86-8, formula C4H8N2O3S and molar mass 164.19 g/mol. It is handled as a solid.

Where it is used

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

Safe handling

Classified under GHS with signal word Warning and hazard statements H302. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Acetylcysteine

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

Acetylcysteine 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 S-Carbamoyl-L-cysteine
Product name	S-Carbamoyl-L-cysteine
Catalogue number	ZX-038785
CAS number	5745-86-8
IUPAC name	(2R)-2-amino-3-carbamoylsulfanylpropanoic acid
Molecular formula	C₄H₈N₂O₃S
Molar mass	164.19 g/mol
Exact mass	164.0256
Grade	Reference Standard
Physical form	Solid
XLogP3	-3.5
H-bond donors / acceptors	3 / 5
Topological polar surface area	132 Å²
HS code	38229090
InChIKey	YOAUVDYBDJTJJP-REOHCLBHSA-N
SMILES	C([C@@H](C(=O)O)N)SC(=O)N
PubChem CID	151277
Synonyms	S-Carbamylcysteine, H-Cys(carbamoyl)-OH, S-Carbamyl-L-cysteine, S-Carbamoylcysteine, S-(Aminocarbonyl)-L-cysteine, (2R)-2-azaniumyl-3-carbamoylsulfanylpropanoate, L-Cysteine carbamate, 3-Carbamylthioalanine, L-Cysteine, S-carbamate, 3-Thiocarbamoyl-L-alanine, L-Cysteinyl carbamate, Cysteine, carbamate (ester)

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

H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 S-Carbamoyl-L-cysteine
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 S-Carbamoyl-L-cysteine

Which CAS number identifies S-Carbamoyl-L-cysteine?

S-Carbamoyl-L-cysteine is registered under CAS 5745-86-8. You may also see it listed as S-Carbamylcysteine, H-Cys(carbamoyl)-OH, S-Carbamyl-L-cysteine. Our catalogue number for this item is ZX-038785.

What are the formula and molar mass of S-Carbamoyl-L-cysteine?

For S-Carbamoyl-L-cysteine, its formula is C4H8N2O3S and its molar mass is 164.19 g/mol. The systematic (IUPAC) name is (2R)-2-amino-3-carbamoylsulfanylpropanoic acid. InChIKey YOAUVDYBDJTJJP-REOHCLBHSA-N lets you match it in any structure database.

How is S-Carbamoyl-L-cysteine used in pharmaceutical QC?

S-Carbamoyl-L-cysteine is a characterised reference material linked to Acetylcysteine. 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 S-Carbamoyl-L-cysteine?

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 S-Carbamoyl-L-cysteine?

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 S-Carbamoyl-L-cysteine to my country?

Yes. Because S-Carbamoyl-L-cysteine 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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