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Heterocyclic building blocks

Hydantoin

Also known as imidazolidine-2,4-dione, 2,4-Imidazolidinedione, Glycolylurea

CAS 461-72-3Formula C3H4N2O2Molar mass 100.08 g/molEC 207-313-3
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Hydantoin chemical structure, C3H4N2O2, CAS 461-72-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
461-72-3
Formula
C3H4N2O2
Molar mass
100.08 g/mol
EC number
207-313-3
HS code
293321
Category
Heterocyclic building blocks

What is Hydantoin?

Plain description, key identifiers and synonyms

Hydantoin is an imidazolidine-2,4-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
imidazolidine-2,4-dione
CAS number
461-72-3 CAS number cross-checkedOther or deprecated CAS: 25280-53-9
EC number
207-313-3
Molecular formula
C3H4N2O2
UNII
I6208298TA
MDL number
MFCD00005259
InChIKey
WJRBRSLFGCUECM-UHFFFAOYSA-N
InChI
InChI=1S/C3H4N2O2/c6-2-1-4-3(7)5-2/h1H2,(H2,4,5,6,7)
SMILES (canonical and isomeric)
C1C(=O)NC(=O)N1

Synonyms

  • imidazolidine-2,4-dione
  • 2,4-Imidazolidinedione
  • Glycolylurea
  • Imidazole-2,4(3H,5H)-dione
  • 2,4(3H,5H)-Imidazoledione
  • 2,4-imidazolinedione
  • 2-Imidazolin-4(or 5)-one, 2-hydroxy-
  • Hydantoins
  • Hydantoine
  • 2,4-(3H,5H)-imidazoledione
  • Hydantoin, 98%
  • 2,5H)-Imidazoledione
  • imidazolidine-2,4dione
  • Imidazole-2,5H)-dione
  • 5-24-05-00188 (Beilstein Handbook Reference)
  • Hydantoin Solution in Ethanol, 100ug/mL
  • Hydantoin Solution in Ethanol, 1000ug/mL

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
100.08 g/molcalc.
Exact mass
100.0273 Dacalc.
LogP (octanol/water)
-1.17calc.
Topological polar surface area
58.2 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.33calc.
Formal charge
0calc.
Stereocentres
0calc.
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=C1CNC(=O)N1

O=C1CNC(=O)N1

1 ring, 7 atoms. This chemical is the scaffold itself.

705 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.

Hydantoin suppliers

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

All 83 suppliers
30 of 30 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

83 suppliers in 15 countries

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Hydantoin 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

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2933.21Exact HS code

Hydantoin and its derivatives

World exports in 2024
$71M
+2.7% vs 2023, imports $95.6M
2019 to 2024
Top exporters
  1. China37.9%
  2. United States13.1%
  3. Netherlands10.7%
Top importers
  1. United States20.2%
  2. Spain12.7%
  3. Japan11.1%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Hydantoin is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Hydantoin?

Hydantoin is an imidazolidine-2,4-dione.

What is the CAS number of Hydantoin?

The CAS registry number of Hydantoin is 461-72-3. Other or deprecated CAS numbers: 25280-53-9.

What is the molecular formula and weight of Hydantoin?

The molecular formula of Hydantoin is C3H4N2O2 and its molar mass is 100.08 g/mol.

What is Hydantoin used for?

Known uses and roles of Hydantoin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Hydantoin hazardous?

No GHS hazard classification for Hydantoin 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 Hydantoin?

Hydantoin is usually classified under HS code 293321 (Hydantoin and its derivatives). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Hydantoin?

CompoundList lists 83 suppliers of Hydantoin in United States, China, Germany, United Kingdom and 11 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Hydantoin in India?

3 suppliers in India list Hydantoin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Hydantoin?

Suppliers quote Hydantoin 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 Hydantoin

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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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