C10H12N2O
176.21 g/mol
Industrial ChemicalDanger
4-methyl-1-phenylpyrazolidin-3-one
CAS2654-57-1EC220-180-6
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
photographic developing agent
4-Methyl-1-phenylpyrazolidin-3-one is an organic compound used as a photographic developing agent. It functions by reducing exposed silver halides to metallic silver, thereby rendering the latent image visible in photographic films, plates, or papers.
photographic developing agent
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
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Referencesame scaffold
1-phenyl-3-pyrazolidinone
CAS92-43-3
Photographic developer
Referencesame scaffold
4-(hydroxymethyl)-4-methyl-1-phenylpyrazolidin-3-one
CAS13047-13-7
research compound
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H317May cause an allergic skin reaction
Customs Tariff Classification
The international HS code for 4-methyl-1-phenylpyrazolidin-3-one (CAS 2654-57-1) is 2933.19.
HS code (international, 6-digit)
2933.19
EU CN code (8-digit)
2933 19 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
4-methyl-1-phenylpyrazolidin-3-one
InChIKey
ZZEYCGJAYIHIAZ-UHFFFAOYSA-N
SMILES
CC1CN(NC1=O)C2=CC=CC=C2
Synonyms (16)
- Phenidone B
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