C4H3NO2
97.07 g/mol
Pharmaceutical IntermediateDanger
1H-Pyrrole-2,5-dione
CAS541-59-3EC208-787-4
Category
Pharmaceutical Intermediate
Compound Class
Amide
Primary Use
Pharmaceutical Intermediate
1H-This compound is a chemical compound used as a pharmaceutical intermediate and laboratory reagent. It features a five-membered ring structure with two amide groups and is commonly supplied to the pharmaceutical manufacturing and research sectors.
pharmaceutical intermediateresearch reagent
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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Referencesame scaffold
1-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3-oxo-7,10,13,16,19,22-hexaoxa-4-azapentacosan-25-oic acid
CAS1334177-79-5
research compound
Referencesame scaffold
1-Maleimido-3-oxo-7,10,13,16,19,22,25,28-octaoxa-4-aza-hentriacontan-31-oic acid
CAS1334177-86-4
research compound
Safety Reference
Danger
H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
Customs Tariff Classification
The international HS code for 1H-Pyrrole-2,5-dione (CAS 541-59-3) is 2925.19.
HS code (international, 6-digit)
2925.19
EU CN code (8-digit)
2925 19 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
pyrrole-2,5-dione
InChIKey
PEEHTFAAVSWFBL-UHFFFAOYSA-N
SMILES
C1=CC(=O)NC1=O
Synonyms (15)
- SZB
- 1H-Pyrrole-2,5-dione
- 2,5-Pyrroledione
- 3-Pyrroline-2,5-dione
- 5-hydroxy-2H-pyrrol-2-one
- 5-hydroxypyrrol-2-one
- Maleic imide
- Maleimide
- Maleinimide
- Pyrrole-2,5-dione
- azoline-2,5-dione
- maleic acid imide
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