C7H11NO3
157.17 g/mol
APIDanger
Parametadione
CAS115-67-3EC204-098-8
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Parametadione is an anticonvulsant active pharmaceutical ingredient used in the manufacturing of medications. It has been associated with developmental toxicity as indicated by government labeling requirements.
pharmaceutical raw material for anticonvulsant drug productionresearch compound for absence seizure studies
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 115-67-3
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Safety Reference
Danger
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H360May damage fertility or the unborn child
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Parametadione (CAS 115-67-3) is 2934.99.
HS code (international, 6-digit)
2934.99
EU CN code (8-digit)
2934 99 90
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
5-ethyl-3,5-dimethyl-1,3-oxazolidine-2,4-dione
InChIKey
VQASKUSHBVDKGU-UHFFFAOYSA-N
SMILES
CCC1(C(=O)N(C(=O)O1)C)C
Synonyms (18)
- Parametadiona [INN-Spanish]
- Paramethadione (INN)
- Paramethadionum [INN-Latin]
- Isoethadione
- Isoethadione; Paradione
- PARAMETHADIONE [MART.]
- Paradione
- Paradione (TN)
- Parametadiona
- Parametadione
- Paramethadionum
- paramethadione (500 mg)