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Heterocyclic building blocks

Dimethadione

Also known as 5,5-Dimethyloxazolidine-2,4-dione, 5,5-Dimethyl-2,4-oxazolidinedione, Eupractone

CAS 695-53-4Formula C5H7NO3Molar mass 129.12 g/molEC 211-781-4
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard 25 suppliers listed
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Dimethadione chemical structure, C5H7NO3, CAS 695-53-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
695-53-4
Formula
C5H7NO3
Molar mass
129.12 g/mol
EC number
211-781-4
HS code
293499
Category
Heterocyclic building blocks

What is Dimethadione?

Plain description, key identifiers and synonyms

5,5-dimethyloxazolidine-2,4-dione is an oxazolidinone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5,5-dimethyl-1,3-oxazolidine-2,4-dione
CAS number
695-53-4 CAS number cross-checked
EC number
211-781-4
Molecular formula
C5H7NO3
UNII
ALU9NPM703
MDL number
MFCD00005379
InChIKey
JYJFNDQBESEHJQ-UHFFFAOYSA-N
InChI
InChI=1S/C5H7NO3/c1-5(2)3(7)6-4(8)9-5/h1-2H3,(H,6,7,8)
SMILES (canonical and isomeric)
CC1(C(=O)NC(=O)O1)C

Synonyms

  • 5,5-Dimethyloxazolidine-2,4-dione
  • 5,5-Dimethyl-2,4-oxazolidinedione
  • Eupractone
  • Dimethyloxazolidinedione
  • 2,4-Oxazolidinedione, 5,5-dimethyl-
  • BAX 1400Z
  • Dimetadiona
  • Dimetadione
  • AC 1198
  • Dimethadionum
  • Nortrimethadione
  • Dimethadion
  • Propazone
  • 5,5-Dimethyl-1,3-oxazolidine-2,4-dione
  • 5,5-Dimethyloxazolidinedione
  • DMO
  • Dimethyl-oxazolidine-2,4-dione
  • 5,5-Dwumetylooksazolidyno-2,4-dion
  • BAY 1400Z
  • 5,5-Dimethyl-2,4-oxazolidindion
  • 4-27-00-03237 (Beilstein Handbook Reference)
  • 2,4-Oxazolidinedione, 5, 5-dimethyl-
  • Dimetha
  • 5,4-oxazolidinedione
  • Trimethadion, M(nor-)
Show all 27 synonyms
  • Dimethadione (USAN/INN)
  • DivK1c_000939

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
129.12 g/molcalc.
Exact mass
129.0426 Dacalc.
LogP (octanol/water)
0.03calc.
Topological polar surface area
55.4 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.6calc.
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=C1COC(=O)N1

O=C1COC(=O)N1

1 ring, 7 atoms, the 2,4-Oxazolidinedione ring system.

100 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
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H351Suspected of causing cancer.
Precautionary statements (19)
  • P203Obtain, read and follow all safety instructions before use.
  • 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.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Dimethadione suppliers

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

All 25 suppliers
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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

25 suppliers in 5 countries

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Dimethadione price

Indicative price range per kg from live supplier offers

No published prices right now

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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

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 Dimethadione is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Dimethadione?

5,5-dimethyloxazolidine-2,4-dione is an oxazolidinone.

What is the CAS number of Dimethadione?

The CAS registry number of Dimethadione is 695-53-4.

What is the molecular formula and weight of Dimethadione?

The molecular formula of Dimethadione is C5H7NO3 and its molar mass is 129.12 g/mol.

What is Dimethadione used for?

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

Is Dimethadione hazardous?

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

What is the HS code of Dimethadione?

Dimethadione is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dimethadione?

CompoundList lists 25 suppliers of Dimethadione in United States, China, Canada, Germany and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dimethadione?

Suppliers quote Dimethadione 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 Dimethadione

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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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