DL-Penicillamine

Name: DL-Penicillamine
Brand: Vaqora Chemicals
SKU: VQ-021308

About DL-Penicillamine

DL-Penicillamine is an impurity of Bacampicillin carrying the CAS registry number 52-66-4. The compound has the formula C5H11NO2S, corresponding to a molecular weight of 149.21 g/mol. Its systematic (IUPAC) name is 2-amino-3-methyl-3-sulfanylbutanoic acid. Common synonyms include (+-)-Penicillamine and Valine, 3-mercapto-.

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.

Pharmaceutical QC and development laboratories use this impurity standard of Bacampicillin 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 DL-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 Bacampicillin

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

Bacampicillin impurities

Specifications & identifiers

Chemical identifiers
Product name	DL-Penicillamine
Catalogue No.	VQ-021308
CAS Number	52-66-4
IUPAC name	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-UHFFFAOYSA-N
SMILES	CC(C)(C(C(=O)O)N)S
PubChem CID	4727

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.8
H-bond donors / acceptors	3 / 4
TPSA	64.3 Å²
Synonyms	(+-)-Penicillamine, Valine, 3-mercapto-, 2-Amino-3-mercapto-3-methylbutanoic acid, 3-Sulfanylvaline, DL-beta-Mercaptovaline, beta-Mercaptovaline, 3,3-Dimethyl-DL-cysteine, 2-Amino-3-mercapto-3-methylbutyric acid, 3-Mercaptovaline, (+/-)-penicillamine, beta-Thiovaline, D-Penicyllamine

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, 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 DL-Penicillamine?

The CAS Registry Number of DL-Penicillamine is 52-66-4. It is also known as (+-)-Penicillamine, Valine, 3-mercapto-, 2-Amino-3-mercapto-3-methylbutanoic acid.

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

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

What is DL-Penicillamine used for?

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

We supply DL-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 DL-Penicillamine?

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

Yes. DL-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.