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Heterocyclic building blocks

Metharbital

Also known as Metharbitone, Gemonil, Metarbital

CAS 50-11-3Formula C9H14N2O3Molar mass 198.22 g/molEC 200-011-2
GHS signal word: Warning. Pictograms: Hazardous to the environment 1 supplier listed
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Metharbital chemical structure, C9H14N2O3, CAS 50-11-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50-11-3
Formula
C9H14N2O3
Molar mass
198.22 g/mol
EC number
200-011-2
HS code
293359
Category
Heterocyclic building blocks

What is Metharbital?

Plain description, key identifiers and synonyms

Metharbital is an organic molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5,5-diethyl-1-methyl-1,3-diazinane-2,4,6-trione
CAS number
50-11-3 CAS number cross-checked
EC number
200-011-2
Molecular formula
C9H14N2O3
UNII
02OS7K758T
InChIKey
FWJKNZONDWOGMI-UHFFFAOYSA-N
InChI
InChI=1S/C9H14N2O3/c1-4-9(5-2)6(12)10-8(14)11(3)7(9)13/h4-5H2,1-3H3,(H,10,12,14)
SMILES (canonical and isomeric)
CCC1(C(=O)NC(=O)N(C1=O)C)CC

Synonyms

  • Metharbitone
  • Gemonil
  • Metarbital
  • Endiemal
  • 5,5-Diethyl-1-methylbarbituric acid
  • 5,5-diethyl-1-methyl-1,3-diazinane-2,4,6-trione
  • Metharbitalum
  • Metharbital ciii
  • 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl-1-methyl-
  • 5,5-diethyl-6-hydroxy-3-methyl-2,3,4,5-tetrahydropyrimidine-2,4-dione
  • methobarbitone
  • Methylbarbital
  • Metabarbital
  • N-Methylbarbital
  • Endiemalum
  • Metharbutal
  • 1-Methylbarbital
  • Gemonit
  • Sch 412
  • AN 23
  • Barbituric acid, 5,5-diethyl-1-methyl-
  • Methabarbital
  • Methabarbitone
  • Metarbitale
  • Metharbital ciii (200 mg)
Show all 30 synonyms
  • Gemonil (TN)
  • Methylbarbital (1.0mg/ml in Acetonitrile)
  • Metharbital (JAN/INN)
  • 5,5-Diethyl-1-methyl-2,4,6(1H,3H,5H)-pyrimidinetrione
  • 5,5-diethyl-1-methylpyrimidine-2,4,6(1H,3H,5H)-trione

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
198.22 g/molcalc.
Exact mass
198.1004 Dacalc.
LogP (octanol/water)
0.5calc.
Topological polar surface area
66.48 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
14calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
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=C1CC(=O)NC(=O)N1

O=C1CC(=O)NC(=O)N1

1 ring, 9 atoms, the Barbituric acid ring system.

747 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H400Very toxic to aquatic life.
Precautionary statements (3)
  • P273Avoid release to the environment.
  • P391Collect spillage.
  • 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

Metharbital suppliers

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Where suppliers are based

1 supplier in 1 country

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Metharbital 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

Roles

  • anticonvulsant
  • central nervous system depressant
  • central nervous system drug
  • pharmaceutical

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 Metharbital is traded under.

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Metharbital?

Metharbital is an organic molecular entity.

What is the CAS number of Metharbital?

The CAS registry number of Metharbital is 50-11-3.

What is the molecular formula and weight of Metharbital?

The molecular formula of Metharbital is C9H14N2O3 and its molar mass is 198.22 g/mol.

What is Metharbital used for?

Known uses and roles of Metharbital include building blocks in research and laboratory, screening compounds in research and laboratory, anticonvulsant, central nervous system depressant, central nervous system drug and 1 more.

Is Metharbital hazardous?

Metharbital carries the GHS signal word "Warning". Main hazards: very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Metharbital?

Metharbital is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Metharbital?

CompoundList lists 1 supplier of Metharbital in 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 Metharbital?

Suppliers quote Metharbital 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 Metharbital

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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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