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5,5-diphenylimidazolidine-2,4-dione Primary identifiers
CAS 57-41-0 Formula C15 H12 N2 O2 Primary name 5,5-diphenylimidazolidine-2,4-dione Synonyms 387 Single source
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387 synonyms indexed on this record. Molecular formula C15 H12 N2 O2 (see identifiers).
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Overview Key identifiers
CAS No. CAS 57-41-0 Primary name Primary name 5,5-diphenylimidazolidine-2,4-dione Formula Formula C15 H12 N2 O2 Molecular formula is a stored field on this chemical record.
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Added Apr 3, 2026 · Updated Apr 3, 2026
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Naming & synonyms (387) Labels below are naming entries stored on this chemical record—they are not separate competing master records. Searchable variants may also have synonym landing URLs; name hub pages group catalog text matches for indexed name strings.
Display-oriented names (377)
phenytoin 5,5-DIPHENYLHYDANTOIN 57-41-0 Diphenylhydantoin Phenytoine Zentropil Lepitoin Diphantoin Dilabid Epamin Dihydantoin Diphenylan Dihycon Sodanton Diphedan Fenitoina Fenylepsin Hidantal Lehydan Di-Hydan Denyl Eptal Diphenylhydatanoin Auranile Dantinal Dantoinal Dantoine Difetoin Difhydan Dilantine Dillantin Dintoina Diphedal Diphenin Diphenine Diphentyn Ditoinate Elepsindon Enkelfel Epifenyl Epihydan Epilantin Fenytoine Hidantilo Hidantina Hidantomin Hydantal Idantoil Idantoin Kessodanten Phanantin Phanatine Phenatoine Phentoin Phentytoin Ritmenal Silantin Sodantoin Solantin Sylantoic Thilophenyl Zentronal Danten Dintoin Epelin Epinat Epised Fentoin Lepsin Saceril Sanepil Hidan Ekko Ictalis simple Toin unicelles Om-Hydantoine Dantoinal klinos Di-Lan Di-Phetine Epdantoine simple Gerot-epilan-D Hidantina vitoria Comitoina Epilan-D Neosidantoina Novantoina Causoin Hidantina senosian Hydantol Minetoin Convul Ekko capsules 5,5-Diphenyl-2,4-imidazolidinedione Neos-Hidantoina Om hidantoina simple Phenytoinum TOIN 2,4-Imidazolidinedione, 5,5-diphenyl- Dilantin-125 Diphentoin Epanutin Hydantin Comital Solantoin Solantyl 5,5-Dwufenylohydantoina Eptoin DILANTIN-30 Citrullamon 5,5-Diphenylimidazolidin-2,4-dione Hydantoin, 5,5-diphenyl- 5,5-Diphenyl-imidazolidine-2,4-dione NCI-C55765 CHEBI:8107 6158TKW0C5 DTXCID60541 Fenitoin 5,5-diphenyltetrahydro-1H-2,4-imidazoledione SM-88 COMPONENT PHENYTOIN Dilantin Infatabs 5,5-di(phenyl)imidazolidine-2,4-dione Phenytoin Infatabs RefChem:861853 N03AB02 200-328-6 Epilan Fenantoin Dilantin Aleviatin Hydantoinal Difenin Labopal Oxylan Dilantin acid Phenhydanin Sinergina Sodanthon Iphenylhydantoin Phenytoin-Gerot Difenilhidantoina Fenytoin Dak Didan TDC 250 Epdantoin Simple Phenytoin AWD Epilan D Diphenat Hindatal Fenitoina [INN-Spanish] Phenytoine [INN-French] Phenytoinum [INN-Latin] Difenilhidantoina [Spanish] Diphenylhydantoine [French] Fenantoin Mn Pharma Diphenylhydantoine Di-Lan (VAN) Diphenylhydantoin (VAN) DPH (VAN) 5,5-diphenyl hydantoin 5,5-Diphenylhydantoin (IUPAC) 5,5-Dwufenylohydantoina [Polish] CCRIS 515 AI3-52498 Dilantin (TN) Novophenytoin MLS000069789 Citrulliamon Phenitoin Fenidantoin s Epasmir 5 NCGC00021139-03 SMR000059026 Fenidantoin "s" 5,5-DIPHENYLHYDANTOIN-D5 98 ATOM % D Epasmir "5" Didan-tdc-250 CAS-57-41-0 phenytoin (PHN) 5,5-diphenyl-1,3-diazolidine-2,4-dione component of Mebroin fenidantoin ''s'' epasmir ''5'' 5,5-Diphenylhydantoin (phenytoin) EINECS 200-328-6 Phenythoin Phenantoin; Fenantoin; Fenytoine; Phenhydan; SR-01000075211 Epanutin; Fenitoin; Pyoredol; Epsolin; IFLab1_000214 Pentran; Phenytoin RS Phenytoin CRS Fenidantoin 's' HSDB 3160 Di-Hydan; Episar (Salt/Mix) Epasmir '5' Aladdin (Salt/Mix) Alepsin (Salt/Mix) Epsolin (Salt/Mix) Phenytoin (Lepitoin) Phenytoin (Standard) Tacosal (Salt/Mix) Phenytoin [USAN:USP:INN:BAN:JAN] Antisacer (Salt/Mix) Epdantoin (Salt/Mix) Epileptin (Salt/Mix) Hydantoin,5-diphenyl- Spectrum_001105 Fenigramon (Salt/Mix) Citrullamon (Salt/Mix) Opera_ID_394 PHENYTOIN [INN] PHENYTOIN [JAN] 2, 5,5-diphenyl- PHENYTOIN [MI] CHEMBL16 PHENYTOIN [HSDB] PHENYTOIN [IARC] PHENYTOIN [USAN] Spectrum2_001281 Spectrum3_000890 Spectrum4_000984 Spectrum5_001369 Lopac-D-4007 PHENYTOIN [VANDF] Epitope ID:117723 PHENYTOIN [MART.] D 4007 PHENYTOIN [USP-RS] PHENYTOIN [WHO-DD] PHENYTOIN [WHO-IP] SCHEMBL3440 BIDD:PXR0090 Lopac0_000329 Lopac0_000378 Oprea1_373280 BSPBio_001437 KBioGR_001387 KBioSS_001585 MLS001074087 MLS002454401 BIDD:GT0625 DivK1c_000507 Soluble phenytoin (Salt/Mix) SPBio_001281 Phenytoin (JP18/USP/INN) Phenytoin, 1mg/ml in Methanol GTPL2624 orb1310151 orb3025200 PHENYTOIN [ORANGE BOOK] 2-hydroxy-5,5-diphenyl-3,5-dihydro-4H-imidazol-4-one PHENYTOIN [EP MONOGRAPH] PHENYTOIN [USP IMPURITY] SCHEMBL11836878 HY-B0448R KBio1_000507 KBio2_001585 KBio2_004153 KBio2_006721 KBio3_001780 PHENYTOIN [USP MONOGRAPH] WLN: T5MVMV EHJ ER& ER 5,5-Diphenylhydantoin, >=99% NINDS_000507 Phenytoin 1.0 mg/ml in Methanol HMS1412J16 HMS1694O05 HMS1791H19 HMS1989H19 HMS2089E11 HMS2236J06 HMS3261K17 HMS3402H19 HMS3657O03 HMS5081O17 PHENYTOINUM [WHO-IP LATIN] SMSSF-0000406 HY-B0448 Hydantoin, 5,5-diphenyl- (8CI) MSK10317 Tox21_110861 Tox21_202299 Tox21_300281 Tox21_500378 AC-376 BDBM50003655 BDBM50101816 EBC-04217 Phenytoin for system suitability CRS s2525 STK058029 STK182871 STL454130 PHENYTOIN COMPONENT OF SM-88 AKOS000416887 AKOS003245432 Tox21_110861_1 CCG-104011 CCG-221682 DB00252 FD22484 LP00378 Phenytoin 1000 microg/mL in Methanol IDI1_000507 IDI1_008433 NCGC00015342-01 NCGC00015342-02 NCGC00015342-03 NCGC00015342-04 NCGC00015342-05 NCGC00015342-06 NCGC00015342-07 NCGC00015342-08 NCGC00015342-09 NCGC00015342-10 NCGC00015342-11 NCGC00015342-12 NCGC00021139-01 NCGC00021139-02 NCGC00021139-04 NCGC00021139-05 NCGC00021139-06 NCGC00021139-07 NCGC00021139-08 NCGC00021139-09 NCGC00021139-10 NCGC00021139-11 NCGC00091492-01 NCGC00091492-02 NCGC00091492-03 NCGC00091492-04 NCGC00091492-05 NCGC00093810-01 NCGC00093810-02 NCGC00254135-01 NCGC00259848-01 NCGC00261063-01 5,5-?Diphenyl-?2,4-?imidazolidinedione DA-56808 imidazolidine-2,4-dione, 5,5-diphenyl- 5,5-Diphenyl-1H-imidazolidine-2,4-dione D0894 EU-0100378 ST45024762 SW203757-2 EN300-16818 D00512 E76094 2,4-Imidazolidinedione, 5,5-diphenyl- (9CI) AB00374253-10 AB00374253-11 AB00374253_13 Q410400 SR-01000003141 doi:10.14272/CXOFVDLJLONNDW-UHFFFAOYSA-N.1 SR-01000003141-8 SR-01000075211-2 BRD-K55930204-001-02-7 BRD-K55930204-001-20-9 BRD-K55930204-236-11-0 BRD-K55930204-236-23-5 BRD-K55930204-236-24-3 Z56786458 4-hydroxy-5,5-diphenyl-1,5-dihydro-2H-imidazol-2-one F0020-1370 F0081-0306 Phenytoin, European Pharmacopoeia (EP) Reference Standard Phenytoin, United States Pharmacopeia (USP) Reference Standard Phenytoin, Pharmaceutical Secondary Standard; Certified Reference Material Phenytoin for system suitability, European Pharmacopoeia (EP) Reference Standard Registry & reference names (10) NSC-8722 DTXSID8020541 MFCD00005264 NSC 8722 UNII-6158TKW0C5 SBB057224 NS00010290 C07443 F358172 InChI=1/C15H12N2O2/c18-13-15(17-14(19)16-13,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H2,16,17,18,19 Properties
Molecular formula C15 H12 N2 O2 Safety No safety data available
Structured safety data is not available for this record yet.
Record scope
About this record This URL is the chemical record page for 5,5-diphenylimidazolidine-2,4-dione (CAS 57-41-0). The molecular formula field reads C15 H12 N2 O2 . 387 naming or synonym entries are indexed on this row.
Canonical identifiers on the record: English name · CAS (when present) · molecular formula (when present). Synonym landing and name hub URLs are browse helpers; they point at or group catalog data, not separate chemical records.
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