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Impurities and reference standards

Ompi

Also known as 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine, 1-(2-Mercaptoethyl)-4-phenyl-2-imidazolidinone, 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine, (a+-)-

CAS 32190-33-3Formula C11H14N2OSMolar mass 222.31 g/mol
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Ompi chemical structure, C11H14N2OS, CAS 32190-33-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
32190-33-3
Formula
C11H14N2OS
Molar mass
222.31 g/mol
HS code
293329
Category
Impurities and reference standards

What is Ompi?

Plain description, key identifiers and synonyms

Ompi is a chemical substance with the molecular formula C11H14N2OS and a molar mass of 222.31 g/mol. Its CAS registry number is 32190-33-3. The IUPAC name is 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one
CAS number
32190-33-3 CAS number cross-checkedOther or deprecated CAS: 69158-71-0
Molecular formula
C11H14N2OS
UNII
AC57BIX3H8
InChIKey
KKEBXNMGHUCPEZ-UHFFFAOYSA-N
InChI
InChI=1S/C11H14N2OS/c14-11-12-10(8-13(11)6-7-15)9-4-2-1-3-5-9/h1-5,10,15H,6-8H2,(H,12,14)
SMILES (canonical and isomeric)
C1C(NC(=O)N1CCS)C2=CC=CC=C2

Synonyms

  • 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine
  • 1-(2-Mercaptoethyl)-4-phenyl-2-imidazolidinone
  • 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine, (a+-)-
  • DL-2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine
  • 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one
  • Levamisole EP Impurity C
  • 1-(2-Mercaptoethyl)-4-phenylimidazolidin-2-one
  • (4rs)-4-Phenyl-1-(2-sulfanylethyl)imidazolidin-2-one
  • 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine, OMPI, 1-(2-Mercaptoethyl)-4-phenylimidazolidin-2-one, 1-(2-Mercaptoethyl)-4-phenyl-2-imidazolidinone,
  • (+-)-1-(2-Mercaptoethyl)-4-phenyl-2-imidazolidinone
  • 2-Imidazolidinone, 1-(2-mercaptoethyl)-4-phenyl-, (+-)-
  • 2-oxo-3-(2-mercapto-ethyl)-5-phenylimidazolidine
  • Levamisole hydrochloride impurity c
  • (+/-)-2-oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine
  • 1-(2-Mercaptoethyl)-4-phenyl-2-imdazolidinone
  • 2-Imidazolidinone, 1-(2-mercaptoethyl)-4-phenyl-
  • 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine, dl-
  • 4-Phenyl-1-(2-sulfanylethyl)-4,5-dihydro-1H-imidazol-2-ol
  • Levamisole for veterinary use impurity c
  • 2-Oxo-3-(2-mercaptoethyl)-5-phenylimidazolidine, (+/-)-
  • rac-(4R)-4-Phenyl-1-(2-sulfanylethyl)imidazolidin-2-one

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
222.31 g/molcalc.
Exact mass
222.0827 Dacalc.
LogP (octanol/water)
1.68calc.
Topological polar surface area
32.34 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
15calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.36calc.
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=C1NCC(c2ccccc2)N1

O=C1NCC(c2ccccc2)N1

2 rings, 12 atoms, the 4-Phenylimidazolidin-2-one ring system.

69 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Ompi suppliers

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Ompi price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Ompi 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 Ompi is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Ompi?

Ompi is a chemical substance with the molecular formula C11H14N2OS and a molar mass of 222.31 g/mol. Its CAS registry number is 32190-33-3. The IUPAC name is 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one.

What is the CAS number of Ompi?

The CAS registry number of Ompi is 32190-33-3. Other or deprecated CAS numbers: 69158-71-0.

What is the molecular formula and weight of Ompi?

The molecular formula of Ompi is C11H14N2OS and its molar mass is 222.31 g/mol.

Is Ompi hazardous?

No GHS hazard classification for Ompi is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Ompi?

Ompi 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 Ompi?

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What is the price of Ompi?

Suppliers quote Ompi 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 Ompi

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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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