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UC180

Sigma-Aldrich

(S)-(+)-Nirvanol

Synonym(s):

(S)-(+)-5-Ethyl-5-phenyl-2,4-imidazolidinedione, (S)-(+)-5-Ethyl-5-phenylhydantoin

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About This Item

Empirical Formula (Hill Notation):
C11H12N2O2
CAS Number:
65567-34-2
Molecular Weight:
204.23
MDL number:
MFCD00272652
UNSPSC Code:
12161501
PubChem Substance ID:
329827656

form

solid

Quality Level

200

color

off-white

solubility

DMF: soluble

storage temp.

2-8°C

SMILES string

CC[C@]1(NC(=O)NC1=O)c2ccccc2

InChI

1S/C11H12N2O2/c1-2-11(8-6-4-3-5-7-8)9(14)12-10(15)13-11/h3-7H,2H2,1H3,(H2,12,13,14,15)/t11-/m0/s1

InChI key

UDTWZFJEMMUFLC-NSHDSACASA-N

Biochem/physiol Actions

5-ethyl-5-phenylhydantoin (EPH) is a long-acting sedative. It is implicated to favor hepatocellular and thyroid follicular cell tumor progression.
CYP2B6 metabolite of (R)-(-)-mephenytoin; anticonvulsant; hypnotic.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Preparation Note

Nirvanol is soluble in DMF.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302 - H315 - H319 - H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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W Kalow
Xenobiotica; the fate of foreign compounds in biological systems, 16(5), 379-389 (1986-05-01)
The antiepileptic drug mephenytoin is a racemate. Mephenytoin hydroxylation is a stereospecific reaction and is confined to the S-enantiomer, which is normally eliminated within hours, allowing the R-enantiomer to accumulate since it can be eliminated only within days or weeks.
W H Theodore et al.
Neurology, 34(8), 1100-1102 (1984-08-01)
We investigated the conversion of mephenytoin to nirvanol in five patients with uncontrolled complex partial seizures. After a 50-mg single oral dose, mean peak mephenytoin level was 0.48 microgram/ml and nirvanol 0.37 microgram/ml. After 400 mg, peak mephenytoin level was
S H Akrawi et al.
European journal of drug metabolism and pharmacokinetics, 14(4), 269-278 (1989-10-01)
The stereoselective clearances of R- and S-mephenytoin were determined in rats receiving either an intravenous or hepatic portal vein infusion of racemic mephenytoin. The mean +/- SD intravenous clearances of R- and S-mephenytoin were 1630 +/- 250 ml/hr and 630
A Pezeshk et al.
Journal of inorganic biochemistry, 42(4), 267-272 (1991-06-01)
The preparation and spectral properties of copper(II) complexes of two hydantoins are reported. Complexes of the general formula Cu(hyd)2(py)2, where hyd = phenytoin or nirvanol; and py = pyridine were prepared and characterized by infrared and ESR. Spectral data show
B F Bourgeois et al.
Epilepsia, 27(4), 412-418 (1986-07-01)
Stereoselective metabolism has been demonstrated for mephenytoin (MHT), R-MHT being demethylated to the pharmacologically active metabolite 5-phenyl-5-ethylhydantoin (PEH; nirvanol), and S-MHT undergoing aromatic hydroxylation to 4-OH-MHT, with formation of an intermediate arene oxide metabolite. PEH is responsible for the therapeutic
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