S-Carbamoyl-L-cysteine

Name: S-Carbamoyl-L-cysteine
Brand: Vaqora Chemicals
SKU: VQ-047317

About S-Carbamoyl-L-cysteine

Vaqora Chemicals supplies S-Carbamoyl-L-cysteine, an impurity of Acetylcysteine registered under CAS number 5745-86-8. With the molecular formula C4H8N2O3S, it has a molar mass of 164.19 g/mol. Systematically, it is named (2R)-2-amino-3-carbamoylsulfanylpropanoic acid. Alternative names: S-Carbamylcysteine and H-Cys(carbamoyl)-OH.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

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

Vaqora Chemicals supplies S-Carbamoyl-L-cysteine in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Acetylcysteine

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

Acetylcysteine impurities

Specifications & identifiers

Chemical identifiers
Product name	S-Carbamoyl-L-cysteine
Catalogue No.	VQ-047317
CAS Number	5745-86-8
IUPAC name	(2R)-2-amino-3-carbamoylsulfanylpropanoic acid
Molecular formula	C₄H₈N₂O₃S
Molecular weight	164.19 g/mol
Exact mass	164.0256
Grade	Reference Standard
HSN code	38229090
InChIKey	YOAUVDYBDJTJJP-REOHCLBHSA-N
SMILES	C([C@@H](C(=O)O)N)SC(=O)N
PubChem CID	151277

Physical properties
Physical form	Solid
LogP (XLogP3)	-3.5
H-bond donors / acceptors	3 / 5
TPSA	132 Å²
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)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

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

The CAS Registry Number of S-Carbamoyl-L-cysteine is 5745-86-8. It is also known as S-Carbamylcysteine, H-Cys(carbamoyl)-OH, S-Carbamyl-L-cysteine.

What is the molecular formula and molecular weight of S-Carbamoyl-L-cysteine?

S-Carbamoyl-L-cysteine has the molecular formula C4H8N2O3S and a molecular weight of 164.19 g/mol. Its IUPAC name is (2R)-2-amino-3-carbamoylsulfanylpropanoic acid.

What is S-Carbamoyl-L-cysteine used for?

S-Carbamoyl-L-cysteine is supplied as a characterised reference material related to Acetylcysteine. 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 S-Carbamoyl-L-cysteine can I order?

We supply S-Carbamoyl-L-cysteine 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 S-Carbamoyl-L-cysteine?

Yes. Every lot of S-Carbamoyl-L-cysteine 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 S-Carbamoyl-L-cysteine be shipped internationally?

Yes. S-Carbamoyl-L-cysteine 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.