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Heterocyclic building blocks

Phetharbital

Also known as Phenetharbital, Phenidiemal, Fetarbital

CAS 357-67-5Formula C14H16N2O3Molar mass 260.29 g/molEC 206-615-2
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Phetharbital chemical structure, C14H16N2O3, CAS 357-67-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
357-67-5
Formula
C14H16N2O3
Molar mass
260.29 g/mol
EC number
206-615-2
HS code
293359
Category
Heterocyclic building blocks

What is Phetharbital?

Plain description, key identifiers and synonyms

Phetharbital is a member of barbiturates.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5,5-diethyl-1-phenyl-1,3-diazinane-2,4,6-trione
CAS number
357-67-5 CAS number cross-checked
EC number
206-615-2
Molecular formula
C14H16N2O3
UNII
52HG53W51E
InChIKey
ILORKHQGIMGDFN-UHFFFAOYSA-N
InChI
InChI=1S/C14H16N2O3/c1-3-14(4-2)11(17)15-13(19)16(12(14)18)10-8-6-5-7-9-10/h5-9H,3-4H2,1-2H3,(H,15,17,19)
SMILES (canonical and isomeric)
CCC1(C(=O)NC(=O)N(C1=O)C2=CC=CC=C2)CC

Synonyms

  • Phenetharbital
  • Phenidiemal
  • Fetarbital
  • 5,5-Diethyl-1-phenylbarbituric acid
  • Fetarbitale
  • Phetharbitalum
  • 5,5-Diethyl-1-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione
  • Pyrictal
  • Fedibaretta
  • N-Phenylbarbital
  • N-Phenylbarbitone
  • Phenylbarbitone
  • 5,5-diethyl-1-phenyl-1,3-diazinane-2,4,6-trione
  • 1-Phenyl-5,5-diethylbarbituric acid
  • 5,5-Diethyl-1-phenylbarbitone
  • Phenidiemalum
  • Phetharbitol
  • 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl-1-phenyl-
  • Barbituric acid, 5,5-diethyl-1-phenyl-
  • 4-24-00-01908 (Beilstein Handbook Reference)
  • Barbituric acid,5-diethyl-1-phenyl-
  • 2,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl-1-phenyl-

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
260.29 g/molcalc.
Exact mass
260.1161 Dacalc.
LogP (octanol/water)
2.08calc.
Topological polar surface area
66.48 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.36calc.
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)N(c2ccccc2)C(=O)N1

O=C1CC(=O)N(c2ccccc2)C(=O)N1

2 rings, 15 atoms, the 1-Phenylpyrimidine-2,4,6(1H,3H,5H)-trione ring system.

71 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.

Phetharbital suppliers

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Phetharbital 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

  • GABA Modulators
  • Hypnotics and Sedatives

Pharmacology

Phetharbital is a short-acting barbiturate derivative without hypnotic properties, Phetharbital (N-phenylbarbital) can be used as a sedative and anticonvulsant agent due to its mechanism of enhancing GABA (Gamma Amino Butyric Acid) transmission and inhibition of synaptic excitation. Phetharbital has generally been withdrawn from clinical use. (NCI04)

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

Frequently asked questions

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

What is Phetharbital?

Phetharbital is a member of barbiturates.

What is the CAS number of Phetharbital?

The CAS registry number of Phetharbital is 357-67-5.

What is the molecular formula and weight of Phetharbital?

The molecular formula of Phetharbital is C14H16N2O3 and its molar mass is 260.29 g/mol.

What is Phetharbital used for?

Known uses and roles of Phetharbital include building blocks in research and laboratory, screening compounds in research and laboratory, gaba modulators and hypnotics and sedatives.

Is Phetharbital hazardous?

No GHS hazard classification for Phetharbital 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 Phetharbital?

Phetharbital 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 Phetharbital?

Post a free request on CompoundList and suppliers of Phetharbital will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Phetharbital?

Suppliers quote Phetharbital 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 Phetharbital

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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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