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Heterocyclic building blocks

Menitrazepam

Also known as CB 4857, 5-(1-Cyclohexen-1-yl)-1,3-dihydro-1-methyl-7-nitro-2H-1,4-benzodiazepin-2-one, 2H-1,4-Benzodiazepin-2-one, 5-(1-cyclohexen-1-yl)-1,3-dihydro-1-methyl-7-nitro-

CAS 28781-64-8Formula C16H17N3O3Molar mass 299.33 g/mol
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Menitrazepam chemical structure, C16H17N3O3, CAS 28781-64-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
28781-64-8
Formula
C16H17N3O3
Molar mass
299.33 g/mol
HS code
293379
Category
Heterocyclic building blocks

What is Menitrazepam?

Plain description, key identifiers and synonyms

Menitrazepam is a chemical substance with the molecular formula C16H17N3O3 and a molar mass of 299.33 g/mol. Its CAS registry number is 28781-64-8. The IUPAC name is 5-(cyclohexen-1-yl)-1-methyl-7-nitro-3H-1,4-benzodiazepin-2-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-(cyclohexen-1-yl)-1-methyl-7-nitro-3H-1,4-benzodiazepin-2-one
CAS number
28781-64-8 CAS number cross-checked
Molecular formula
C16H17N3O3
UNII
1243654WZK
InChIKey
CMFUDRPCXZQTOM-UHFFFAOYSA-N
InChI
InChI=1S/C16H17N3O3/c1-18-14-8-7-12(19(21)22)9-13(14)16(17-10-15(18)20)11-5-3-2-4-6-11/h5,7-9H,2-4,6,10H2,1H3
SMILES (canonical and isomeric)
CN1C(=O)CN=C(C2=C1C=CC(=C2)[N+](=O)[O-])C3=CCCCC3

Synonyms

  • CB 4857
  • 5-(1-Cyclohexen-1-yl)-1,3-dihydro-1-methyl-7-nitro-2H-1,4-benzodiazepin-2-one
  • 2H-1,4-Benzodiazepin-2-one, 5-(1-cyclohexen-1-yl)-1,3-dihydro-1-methyl-7-nitro-
  • menitrazepamum
  • 5-(cyclohexen-1-yl)-1-methyl-7-nitro-3H-1,4-benzodiazepin-2-one
  • 5-(Cyclohex-1-en-1-yl)-1-methyl-7-nitro-1,3-dihydro-2H-1,4-benzodiazepin-2-one

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
299.33 g/molcalc.
Exact mass
299.127 Dacalc.
LogP (octanol/water)
2.86calc.
Topological polar surface area
75.81 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
22calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.38calc.
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=C1CN=C(C2=CCCCC2)c2ccccc2N1

O=C1CN=C(C2=CCCCC2)c2ccccc2N1

3 rings, 18 atoms.

3 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.

Menitrazepam suppliers

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Menitrazepam price

Indicative price range per kg from live supplier offers

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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

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 Menitrazepam is traded under.

HS 2933.79Indicative HS code

Lactams, other lactams

World exports in 2024
$16.2B
−64.4% vs 2023, imports $15.4B
2019 to 2024
Top exporters
  1. Ireland37.0%
  2. France * partner reported15.6%
  3. Spain11.3%
Top importers
  1. Germany27.8%
  2. Ireland18.9%
  3. Panama * partner reported12.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Menitrazepam?

Menitrazepam is a chemical substance with the molecular formula C16H17N3O3 and a molar mass of 299.33 g/mol. Its CAS registry number is 28781-64-8. The IUPAC name is 5-(cyclohexen-1-yl)-1-methyl-7-nitro-3H-1,4-benzodiazepin-2-one.

What is the CAS number of Menitrazepam?

The CAS registry number of Menitrazepam is 28781-64-8.

What is the molecular formula and weight of Menitrazepam?

The molecular formula of Menitrazepam is C16H17N3O3 and its molar mass is 299.33 g/mol.

What is Menitrazepam used for?

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

Is Menitrazepam hazardous?

No GHS hazard classification for Menitrazepam 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 Menitrazepam?

Menitrazepam is usually classified under HS code 293379 (Lactams, other lactams). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Menitrazepam?

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

What is the price of Menitrazepam?

Suppliers quote Menitrazepam 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 Menitrazepam

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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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