L-Penicillamine

Name: L-Penicillamine
Brand: Vaqora Chemicals
SKU: VQ-041382

About L-Penicillamine

L-Penicillamine (CAS 1113-41-3) is an impurity of Penicilin offered by Vaqora Chemicals. With the molecular formula C5H11NO2S, it has a molar mass of 149.21 g/mol. Its systematic (IUPAC) name is (2R)-2-amino-3-methyl-3-sulfanylbutanoic acid. Common synonyms include 3-Mercapto-L-valine and 3-sulfanyl-L-valine.

The product is provided 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.

Pharmaceutical QC and development laboratories use this impurity standard of Penicilin to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies L-Penicillamine 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 Penicilin

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

Penicilin impurities

Specifications & identifiers

Chemical identifiers
Product name	L-Penicillamine
Catalogue No.	VQ-041382
CAS Number	1113-41-3
IUPAC name	(2R)-2-amino-3-methyl-3-sulfanylbutanoic acid
Molecular formula	C₅H₁₁NO₂S
Molecular weight	149.21 g/mol
Exact mass	149.051
Grade	Reference Standard
HSN code	38229090
InChIKey	VVNCNSJFMMFHPL-GSVOUGTGSA-N
SMILES	CC(C)([C@@H](C(=O)O)N)S
PubChem CID	92863

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.8
H-bond donors / acceptors	3 / 4
TPSA	64.3 Å²
Synonyms	3-Mercapto-L-valine, 3-sulfanyl-L-valine, L-(+)-beta-Mercaptovaline, (+)-penicillamine, L-Pen, Valine, 3-mercapto-, L-, Penicillamine, (+)-, r-penicillamine, l-3-Mercaptovaline, H-Pen-OH, (R)-2-Amino-3-mercapto-3-methylbutanoic acid, L-Valine, 3-mercapto-

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-Penicillamine?

The CAS Registry Number of L-Penicillamine is 1113-41-3. It is also known as 3-Mercapto-L-valine, 3-sulfanyl-L-valine, L-(+)-beta-Mercaptovaline.

What is the molecular formula and molecular weight of L-Penicillamine?

L-Penicillamine has the molecular formula C5H11NO2S and a molecular weight of 149.21 g/mol. Its IUPAC name is (2R)-2-amino-3-methyl-3-sulfanylbutanoic acid.

What is L-Penicillamine used for?

L-Penicillamine is supplied as a characterised reference material related to Penicilin. 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-Penicillamine can I order?

We supply L-Penicillamine 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-Penicillamine?

Yes. Every lot of L-Penicillamine 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-Penicillamine be shipped internationally?

Yes. L-Penicillamine 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.