5-(4’-Hydroxyphenyl)-5-ethylhydantion

Modify Date: 2025-09-13 07:04:19

5-(4’-Hydroxyphenyl)-5-ethylhydantion Structure
5-(4’-Hydroxyphenyl)-5-ethylhydantion structure
Common Name 5-(4’-Hydroxyphenyl)-5-ethylhydantion
CAS Number 61837-66-9 Molecular Weight 220.22500
Density 1.277g/cm3 Boiling Point N/A
Molecular Formula C11H12N2O3 Melting Point 260ºC
MSDS Chinese USA Flash Point N/A
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name 5-(4’-Hydroxyphenyl)-5-ethylhydantion
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.277g/cm3
Melting Point 260ºC
Molecular Formula C11H12N2O3
Molecular Weight 220.22500
Exact Mass 220.08500
PSA 78.43000
LogP 1.49450
Index of Refraction 1.567

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NI9453716
CHEMICAL NAME :
2,4-Imidazolidinedione, 5-ethyl-5-(4-hydroxyphenyl)-
CAS REGISTRY NUMBER :
61837-66-9
LAST UPDATED :
199612
DATA ITEMS CITED :
6
MOLECULAR FORMULA :
C11-H12-N2-O3
MOLECULAR WEIGHT :
220.25

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0006407
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0006407
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0006407
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0006407
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0006407
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0006407

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H319
Precautionary Statements P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi
RIDADR NONH for all modes of transport
RTECS NI9453716
HS Code 2933990090

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles2

More Articles
Stereoselective metabolism and pharmacogenetic control of 5-phenyl-5-ethylhydantoin (nirvanol) in humans.

J. Pharmacol. Exp. Ther. 230(1) , 28-33, (1984)

Aromatic hydroxylation of 5-phenyl-5-ethylhydantoin (PEH) has been investigated in humans. Single oral doses of S-PEH (247 mumol) were given to seven extensive and seven poor hydroxylators of mephenyt...

Identification of mephenytoin metabolites in the dog.

Drug Metab. Dispos. 8 , 173, (1980)

In two dogs p-hydroxymephenytoin, m-hydroxymephenytoin, 5-ethyl-5-phenylhydantoin (nirvanol), and 5-ethyl-5-(p-hydroxyphenyl)hydantoin (p-hydroxynirvanol) were identified by use of synthetic metabolit...

 Synonyms

5-Aethyl-5-<m-amino-phenyl>-barbitursaeure
4-Amino-phenobarbital
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