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UC179

Sigma-Aldrich

(R)-(−)-Nirvanol

Synonym(s):

(R)-(−)-5-Ethyl-5-phenyl-2,4-imidazolidinedione, (R)-(−)-5-Ethyl-5-phenylhydantoin

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About This Item

Empirical Formula (Hill Notation):
C11H12N2O2
CAS Number:
65567-32-0
Molecular Weight:
204.23
MDL number:
MFCD00754497
UNSPSC Code:
12161501
PubChem Substance ID:
329827655
NACRES:
NA.77

form

solid

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-/m1/s1

InChI key

UDTWZFJEMMUFLC-LLVKDONJSA-N

Biochem/physiol Actions

CYP2B6 metabolite of (S)-(+)-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

Precautionary Statements

P261 - P305 + P351 + P338

Hazard Classifications

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

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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