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Central nervous system drugs

Mesocarb

Also known as Sydnocarb, Sidnocarb, Mesocarbo

CAS 34262-84-5Formula C18H18N4O2Molar mass 322.37 g/mol
Prohibited, not for trade
Why it is not for trade
Mesocarb chemical structure, C18H18N4O2, CAS 34262-84-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
34262-84-5
Formula
C18H18N4O2
Molar mass
322.37 g/mol
HS code
293491
Category
Central nervous system drugs

What is Mesocarb?

Plain description, key identifiers and synonyms

Mesocarb is a DEA Schedule I controlled substance. Substances in the DEA Schedule I have no currently accepted medical use in the United States, a lack of accepted safety for use under medical supervision, and a high potential for abuse. It is a Stimulants substance.

Mesocarb is a stimulant.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-phenyl-N'-[3-(1-phenylpropan-2-yl)oxadiazol-3-ium-5-yl]carbamimidate
CAS number
34262-84-5 CAS number cross-checked
Molecular formula
C18H18N4O2
UNII
UMT8MP2NDU
InChIKey
OWFUPROYPKGHMH-UHFFFAOYSA-N
InChI
InChI=1S/C18H18N4O2/c1-14(12-15-8-4-2-5-9-15)22-13-17(24-21-22)20-18(23)19-16-10-6-3-7-11-16/h2-11,13-14H,12H2,1H3,(H-,19,20,21,23)
Canonical SMILES
CC(Cc1ccccc1)[n+]1cc(N=C([O-])Nc2ccccc2)on1
Isomeric SMILES
CC(CC1=CC=CC=C1)[N+]2=NOC(=C2)/N=C(/NC3=CC=CC=C3)\[O-]

Synonyms

  • Sydnocarb
  • Sidnocarb
  • Mesocarbo
  • Mesocarbum
  • DEA NO. 1227
  • Sydnone imine, 3-(alpha-methylphenethyl)-N-(phenylcarbamoyl)-
  • N-phenylcarbamoyl-3-(beta-phenylisopropyl)sydnonimine
  • N-phenyl-N'-(3-(1-phenylpropan-2-yl)-1,2,3-oxadiazol-3-ium-5-yl)carbamimidate
  • Mesocarb (INN)
  • Sidnokarb
  • Sydnone imine, 3-(1-methyl-2-phenylethyl)-N-((phenylamino)carbonyl)-
  • N-phenyl-N'-[3-(1-phenylpropan-2-yl)oxadiazol-3-ium-5-yl]carbamimidate
  • 3-(beta-Phenylisopropyl)-N-phenyl carbamoylsidnonimin
  • 3-(alpha-Methylphenethyl)-N-(phenylcarbamoyl)sydnone imine
  • N-(Phenylcarbamoyl)-3-(1-phenylpropan-2-yl)-1,2,3-oxadiazol-3-ium-5-aminide
  • N-phenyl-N '-(3-(1-phenylpropan-2-yl)-1,2,3-oxadiazol-3-ium-5-yl)carbamimidate
  • (5Z)-5-[(phenylcarbamoyl)imino]-3-(1-phenylpropan-2-yl)-4,5-dihydro-1,2,3-oxadiazol-3-ium-4-ide
  • (Z)-5-((phenylcarbamoyl)imino)-3-(1-phenylpropan-2-yl)-4,5-dihydro-1,2,3-oxadiazol-3-ium-4-ide
  • 1,2,3-Oxadiazolium, 3-(1-methyl-2-phenylethyl)-5-(((phenylamino)carbonyl)amino)-, inner salt

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
322.37 g/molcalc.
Exact mass
322.143 Dacalc.
LogP (octanol/water)
2.23calc.
Topological polar surface area
77.36 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
5calc.
Heavy atoms
24calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.17calc.
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, C(=Nc1c[n+](CCc2ccccc2)no1)Nc1ccccc1

C(=Nc1c[n+](CCc2ccccc2)no1)Nc1ccccc1

3 rings, 22 atoms.

23 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.

Mesocarb suppliers

Trading restrictions apply to this substance

Psychotropic substance

Mesocarb is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: UN Convention on Psychotropic Substances 1971, HS 2022 subheading 2934.91 (sufentanil and related controlled substances)

Our policy on controlled substances

Mesocarb price

Indicative price range per kg from live supplier offers

Prices are not shown for prohibited substances.

Uses and applications

What the substance is used for, by industry and function

Industries and functions

Pharmacological actions

  • Anticonvulsants
  • Antidepressive Agents
  • Central Nervous System Stimulants
  • Sympathomimetics

Functional uses

  • Pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

Psychotropic substance

Mesocarb is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: UN Convention on Psychotropic Substances 1971, HS 2022 subheading 2934.91 (sufentanil and related controlled substances)

Our policy on controlled substances

Controls

  • US DEA controlled substance or listed chemical
  • Controlled psychotropic substance

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2934.91Exact HS code

Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide…

World exports in 2024
$18.8M
−15.2% vs 2023, imports $18.8M
2019 to 2024
Top exporters
  1. Italy26.7%
  2. United States25.5%
  3. India * partner reported21.1%
Top importers
  1. Egypt42.6%
  2. Japan11.0%
  3. Denmark6.7%

* Partner reported figures, a lower bound.

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

The HS code shown for Mesocarb 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 Mesocarb, based on the data on this page

What is Mesocarb?

Mesocarb is a DEA Schedule I controlled substance. Substances in the DEA Schedule I have no currently accepted medical use in the United States, a lack of accepted safety for use under medical supervision, and a high potential for abuse. It is a Stimulants substance.

What is the CAS number of Mesocarb?

The CAS registry number of Mesocarb is 34262-84-5.

What is the molecular formula and weight of Mesocarb?

The molecular formula of Mesocarb is C18H18N4O2 and its molar mass is 322.37 g/mol.

What is Mesocarb used for?

Known uses and roles of Mesocarb include cns agents in pharmaceuticals, pharmaceutical, anticonvulsants, antidepressive agents, central nervous system stimulants and 1 more.

Is Mesocarb hazardous?

No GHS hazard classification for Mesocarb 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 Mesocarb?

Mesocarb is usually classified under HS code 293491 (Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide…). This is indicative, confirm it with your customs broker before shipping.

Can I buy Mesocarb on CompoundList?

No. Mesocarb is on our prohibited list, so listings, quotes and messages for it are disabled. This page is kept for information only.

Guides for buyers

Practical guides that help when you source, ship or handle Mesocarb

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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