CompoundList

Phenazepam

Also known as Fenazepam, BD 98, 2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-7-bromo-5-(2-chlorophenyl)-

Phenazepam chemical structure, C15H10BrClN2O, CAS 51753-57-2
2D chemical structure

Key facts

What buyers check first

CAS number
51753-57-2
Formula
C15H10BrClN2O
Molar mass
349.62 g/mol
EC number
682-231-2
HS code
293379
Category
Screening compounds

What is Phenazepam?

Plain description, key identifiers and synonyms

Phenazepam is a benzodiazepine seditative.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
7-bromo-5-(2-chlorophenyl)-1,3-dihydro-1,4-benzodiazepin-2-one
CAS number
51753-57-2 CAS number cross-checked
EC number
682-231-2
Molecular formula
C15H10BrClN2O
UNII
3DSB43090Z
InChIKey
CGMJQQJSWIRRRL-UHFFFAOYSA-N
InChI
InChI=1S/C15H10BrClN2O/c16-9-5-6-13-11(7-9)15(18-8-14(20)19-13)10-3-1-2-4-12(10)17/h1-7H,8H2,(H,19,20)
SMILES (canonical and isomeric)
C1C(=O)NC2=C(C=C(C=C2)Br)C(=N1)C3=CC=CC=C3Cl

Synonyms

  • Fenazepam
  • BD 98
  • 2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-7-bromo-5-(2-chlorophenyl)-
  • 2H-1,4-Benzodiazepin-2-one, 7-bromo-5-(2-chlorophenyl)-1,3-dihydro-
  • 7-bromo-5-(2-chlorophenyl) 1,3-dihydro-2H-1,4-benzodiazepin-2-one
  • 7-bromo-5-(2-chlorphenyl)-1,2-dihydro-3H-1,4-benzodiazepin-2-one
  • Phenazapam
  • 7-Bromo-5-(2-chlorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one
  • C15H10BrClN2O
  • 7-Bromo-5-(2-chlorophenyl)-1,3-dihydro-3H-1,4-benzodiazepin-2-one
  • 7-bromo-5-(2-chlorophenyl)-1H-benzo[e][1,4]diazepin-2(3H)-one
  • 7-bromo-5-(2-chlorophenyl)-1H,3H-benzo[f]1,4-diazepin-2-one
  • 7-bromo-5-(2-chlorophenyl)-1,3-dihydro-1,4-benzodiazepin-2-one
  • 7-Bromo-5-(2-chlorophenyl)-2,3-dihydro-1H-1,4-benzodiazepin-2-one
  • Phenzitat
  • MixCom6_000420
  • 5-24-04-00341 (Beilstein Handbook Reference)
  • Phenazepam 0.1 mg/ml in Methanol
  • Phenazepam 1.0 mg/ml in Methanol
  • Phenazepam, 1mg/ml in Acetonitrile
  • 7-Bromo-5-(2-chlorophenyl)-1H-1,4-benzodiazepin-2(3H)-one
  • 7-bromo-5-(2'-chloro-phenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one
  • 7-Bromo-5-(2-chlorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one #
  • 7-Bromo-5-(2-chlorophenyl)-1,3-dihydrobenzo[e]-1,4-diazepin-2-one 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
349.62 g/molcalc.
Exact mass
347.9665 Dacalc.
LogP (octanol/water)
3.89calc.
Topological polar surface area
41.46 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
20calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.07calc.
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(c2ccccc2)c2ccccc2N1

O=C1CN=C(c2ccccc2)c2ccccc2N1

3 rings, 18 atoms, the RO-05-2921 ring system.

540 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H319Causes serious eye irritation.
  • H340May cause genetic defects.
  • H360May damage fertility or the unborn child.
  • H362May cause harm to breast-fed children.
Precautionary statements (12)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P263Avoid contact during pregnancy and while nursing.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P318If exposed or concerned, get medical advice.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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

Phenazepam suppliers

Trading restrictions apply to this substance

Psychotropic substance

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

Phenazepam

Reference: UN 1971 Convention on Psychotropic Substances

Our policy on controlled substances

Phenazepam 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

Pharmacological actions

  • Adjuvants, Immunologic
  • Anti-Arrhythmia Agents
  • Anticonvulsants
  • GABA Agents

Regulatory status

Inventories, regulations and trade controls that list this substance

Psychotropic substance

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

Phenazepam

Reference: UN 1971 Convention on Psychotropic Substances

Our policy on controlled substances

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Phenazepam 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 Phenazepam is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Phenazepam?

Phenazepam is a benzodiazepine seditative.

What is the CAS number of Phenazepam?

The CAS registry number of Phenazepam is 51753-57-2.

What is the molecular formula and weight of Phenazepam?

The molecular formula of Phenazepam is C15H10BrClN2O and its molar mass is 349.62 g/mol.

What is Phenazepam used for?

Known uses and roles of Phenazepam include building blocks in research and laboratory, screening compounds in research and laboratory, adjuvants, immunologic, anti-arrhythmia agents, anticonvulsants and 1 more.

Is Phenazepam hazardous?

Phenazepam carries the GHS signal word "Danger". Main hazards: causes serious eye irritation, may cause genetic defects, may damage fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Phenazepam?

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

Can I buy Phenazepam on CompoundList?

No. Phenazepam 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 Phenazepam

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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