C5H11NO2S
149.21 g/mol
APIWarning
L-Penicillamine
CAS1113-41-3EC214-203-9
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material
L-Penicillamine is a pharmaceutical raw material derived from the hydrolysis of penicillin. It is primarily supplied as an active pharmaceutical ingredient for use in pharmaceutical manufacturing and research.
pharmaceutical manufacturingresearch compound
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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ReferenceSame Category
(3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-7,12,13-trihydroxy-10-hydroxyimino-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecan-2-one
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pharmaceutical raw material
ReferenceSame Category
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ReferenceSame Category
Ponatinib hydrochloride
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Referencestereoisomer of
(±)-penicillamine
CAS52-66-4
pharmaceutical raw material
Referencestereoisomer of
D-penicillamine
CAS52-67-5
pharmaceutical raw material
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for L-Penicillamine (CAS 1113-41-3) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(2R)-2-amino-3-methyl-3-sulfanylbutanoic acid
InChIKey
VVNCNSJFMMFHPL-GSVOUGTGSA-N
SMILES
CC(C)([C@@H](C(=O)O)N)S
Synonyms (21)
- (+)-penicillamine
- 3-Mercapto-L-valine
- 3-sulfanyl-L-valine
- H-Pen-OH
- L-Pen
- L-Pen-OH
- L-Penicillamine
- L-Valine, 3-mercapto-
- L-beta,beta-Dimethylcysteine
- L-beta-Mercaptovaline
- Penicillamine L-form
- Valine, 3-mercapto-, L-
- l-3-Mercaptovaline
- r-penicillamine
- valine, beta-mercapto-
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