C5H11NO2S
149.21 g/mol
APIWarning
D-Penicillamine
CAS52-67-5EC200-148-8
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material
D-Penicillamine is a pharmaceutical raw material used as a chelating agent for heavy metal poisoning. It is a stereochemically defined amino acid derivative containing both an amine and a carboxylic acid group.
pharmaceutical manufacturingheavy metal chelation research
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 52-67-5
Related Compounds
ApplicationSame Use
Unithiol
CAS4076-02-2
pharmaceutical raw material
ReferenceSame Category
Lynestrenol
CAS52-76-6
pharmaceutical raw material
ReferenceSame Category
Haloperidol
CAS52-86-8
pharmaceutical raw material
ReferenceSame Category
Diosmin
CAS520-27-4
pharmaceutical raw material
ReferenceSame Category
Apigenin
CAS520-36-5
pharmaceutical raw material
Referencestereoisomer of
(+)-penicillamine
CAS1113-41-3
pharmaceutical raw material
Referencestereoisomer of
(±)-penicillamine
CAS52-66-4
pharmaceutical raw material
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for D-Penicillamine (CAS 52-67-5) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 16
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
(2S)-2-amino-3-methyl-3-sulfanylbutanoic acid
InChIKey
VVNCNSJFMMFHPL-VKHMYHEASA-N
SMILES
CC(C)([C@H](C(=O)O)N)S
Synonyms (74)
- Penicilamina [INN-Spanish]
- Penicillamine (JAN/USP/INN)
- Penicillamine, European Pharmacopoeia (EP)
- Penicillamine, United States Pharmacopeia (USP)
- Penicillaminum [INN-Latin]
- (S)-3,3-Dimethylcysteine
- (S)-Penicillamin
- (S)-Penicillamine
- 3,3-Dimethyl-D-cysteine
- 3,3-dimethylcysteine
- 3-Mercapto-D-valine
- 3-sulfanyl-D-valine
- Artamine
- Atamir
- Cuprenil
- Cuprimine
- Cuprimine (TN)
- Cupripen
- D Mercaptovaline
- D,L-Penicillamine
- D-3-Mercaptovaline
- D-Penamine
- D-Penicilamine
- D-Penicillamine
- D-Penicillamine API
- D-Penicillamine, 98-101%
- D-Valine, 3-mercapto-
- D-beta,beta-Dimethylcysteine
- D-beta-Mercaptovaline
- DL-3-Mercaptovaline
- Depamine
- Depen
- Depen (TN)
- Dimethylcysteine
- Distamine
- Distamine (*Hydrochloride*)
- H-D-Pen-OH
- Kelatin
- Kuprenil
- Mercaptovaline
- Mercaptyl
- PENICILLAMINE [MART.]
- Pendramine
- Penicilamina
- Penicillamin
- Penicillamina
- Penicillaminate, Copper
- Penicillamine (Cuprimine)
- Penicillamine (Standard)
- Penicillamine CRS
- Penicillaminum
- Perdolat
- Reduced D-penicillamine
- Reduced penicillamine
- Sufirtan
- Sufortan
- Trolovol
- Valine, 3-mercapto-, D-
- beta,beta-Dimethylcysteine
- penicillamine
- penicillamine-(d)
- penicillamine-(racemic)