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Heterocyclic building blocks

Nirvanol

Also known as Ethylphenylhydantoin, normephenytoin, 5-Phenyl-5-ethylhydantoin

CAS 631-07-2Formula C11H12N2O2Molar mass 204.23 g/molEC 211-150-3
GHS signal word: Warning. Pictograms: Harmful or irritant 6 suppliers listed
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Nirvanol chemical structure, C11H12N2O2, CAS 631-07-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
631-07-2
Formula
C11H12N2O2
Molar mass
204.23 g/mol
EC number
211-150-3
HS code
293329
Category
Heterocyclic building blocks

What is Nirvanol?

Plain description, key identifiers and synonyms

Nirvanol is an imidazolidine-2,4-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-ethyl-5-phenylimidazolidine-2,4-dione
CAS number
631-07-2 CAS number cross-checkedOther or deprecated CAS: 2216-93-5
EC number
211-150-3
Molecular formula
C11H12N2O2
UNII
23SM1FA1AK
MDL number
MFCD00022401
InChIKey
UDTWZFJEMMUFLC-UHFFFAOYSA-N
InChI
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)
SMILES (canonical and isomeric)
CCC1(C(=O)NC(=O)N1)C2=CC=CC=C2

Synonyms

  • Ethylphenylhydantoin
  • normephenytoin
  • 5-Phenyl-5-ethylhydantoin
  • Hydantoin, 5-ethyl-5-phenyl-
  • desmethylmephenytoin
  • 2,4-Imidazolidinedione, 5-ethyl-5-phenyl-
  • 5-ethyl-5-phenylimidazolidine-2,4-dione
  • 5-Ethyl-5-phenylhydantoin
  • rac N-Desmethyl Mephenytoin
  • 5-Ethyl-5-phenyl-2,4-imidazolidinedione
  • (+/-)-5-Ethyl-5-phenylhydantoin
  • 5-Ethyl-5-phenyl-imidazolidine-2,4-dione
  • (+/-)-5-Ethyl-5-phenyl-2,4-imidazolidinedione
  • (+-)-Nirvanol
  • (+/-)-Nirvanol
  • (+-)-5-Ethyl-5-phenylhydantoin
  • 5-ethyl-5-phenyl-hydantoin
  • Hydantoin, 5-ethyl-5-phenyl-, (+-)-
  • 2,4-Imidazolidinedione, 5-ethyl-5-phenyl-, (+-)-
  • 2, 5-ethyl-5-phenyl-
  • (RS)-5-Ethyl-5-phenyl-2,4-imidazolidinedione
  • (RS)-5-Ethyl-5-phenyl-
  • 3-ethyl-1-phenylimidazolidine-2,4-dione
  • imidazolidine-2,4-dione, 5-ethyl-5-phenyl-
  • 5-ethyl-5-phenyl-1,3-diazolidine-2,4-dione
Show all 31 synonyms
  • (+/-)-5-ethyl-5-phenyl-imidazolidine-2,4-dione
  • (R)-(-)-5-Ethyl-5-phenyl-2,4-imidazolidinedione
  • (S)-(+)-5-Ethyl-5-phenyl-2,4-imidazolidinedione
  • 5-ethyl-2-hydroxy-5-phenyl-1,5-dihydro-4H-imidazol-4-one
  • 5-Ethyl-5-phenyl-1H-imidazole-2,4(3H,5H)-dione
  • (+/-)-5-Ethyl-5-phenyl-2,4-imidazolidinedione, (+/-)-5-Ethyl-5-phenylhydantoin

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
204.23 g/molcalc.
Exact mass
204.0899 Dacalc.
LogP (octanol/water)
1.13calc.
Topological polar surface area
58.2 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
15calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.27calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1NC(=O)C(c2ccccc2)N1

O=C1NC(=O)C(c2ccccc2)N1

2 rings, 13 atoms, the Phenylhydantoin ring system.

426 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Nirvanol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 6 suppliers
6 of 6 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

6 suppliers in 4 countries

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Nirvanol price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Anticonvulsants

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Nirvanol is traded under.

HS 2933.29Indicative HS code

Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the…

World exports in 2024
$1.43B
−7.6% vs 2023, imports $1.47B
2019 to 2024
Top exporters
  1. China28.1%
  2. France * partner reported12.7%
  3. India * partner reported10.3%
Top importers
  1. United Kingdom13.0%
  2. United States7.9%
  3. China6.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Nirvanol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Nirvanol, based on the data on this page

What is Nirvanol?

Nirvanol is an imidazolidine-2,4-dione.

What is the CAS number of Nirvanol?

The CAS registry number of Nirvanol is 631-07-2. Other or deprecated CAS numbers: 2216-93-5.

What is the molecular formula and weight of Nirvanol?

The molecular formula of Nirvanol is C11H12N2O2 and its molar mass is 204.23 g/mol.

What is Nirvanol used for?

Known uses and roles of Nirvanol include building blocks in research and laboratory, screening compounds in research and laboratory and anticonvulsants.

Is Nirvanol hazardous?

Nirvanol carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Nirvanol?

Nirvanol is usually classified under HS code 293329 (Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Nirvanol?

CompoundList lists 6 suppliers of Nirvanol in United States, Canada, Hong Kong and Singapore. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Nirvanol?

Suppliers quote Nirvanol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Nirvanol

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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