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Heterocyclic building blocks

Ro 5-3663

Also known as 2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-5-methyl-, 5-Methyl-1H-benzo[e][1,4]diazepin-2(3H)-one, 1,3-Dihydro-5-methyl-2H-1,4-benzodiazepin-2-one

CAS 70656-87-0Formula C10H10N2OMolar mass 174.20 g/mol
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Ro 5-3663 chemical structure, C10H10N2O, CAS 70656-87-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
70656-87-0
Formula
C10H10N2O
Molar mass
174.20 g/mol
HS code
293379
Category
Heterocyclic building blocks

What is Ro 5-3663?

Plain description, key identifiers and synonyms

Ro 5-3663 is a chemical substance with the molecular formula C10H10N2O and a molar mass of 174.20 g/mol. Its CAS registry number is 70656-87-0. The IUPAC name is 5-methyl-1,3-dihydro-1,4-benzodiazepin-2-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-methyl-1,3-dihydro-1,4-benzodiazepin-2-one
CAS number
70656-87-0 CAS number cross-checked
Molecular formula
C10H10N2O
UNII
89J9947924
InChIKey
DIDPQMKDRMWTTD-UHFFFAOYSA-N
InChI
InChI=1S/C10H10N2O/c1-7-8-4-2-3-5-9(8)12-10(13)6-11-7/h2-5H,6H2,1H3,(H,12,13)
SMILES (canonical and isomeric)
CC1=NCC(=O)NC2=CC=CC=C12

Synonyms

  • 2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-5-methyl-
  • 5-Methyl-1H-benzo[e][1,4]diazepin-2(3H)-one
  • 1,3-Dihydro-5-methyl-2H-1,4-benzodiazepin-2-one
  • Ro-5-3663
  • 5-Methyl-1,3-dihydro-1,4-benzodiazepin-2-one
  • 5-methyl-3,4-dihydro-2h-1,4-benzodiazepin-2-one
  • dihydro-5-methyl-2h-1,4-benzodiazepine-2-one
  • 3H-1,4-Benzodiazepin-2-one, 1,2-dihydro-5-methyl-

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
174.20 g/molcalc.
Exact mass
174.0793 Dacalc.
LogP (octanol/water)
1.45calc.
Topological polar surface area
41.46 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
13calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.2calc.
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=Cc2ccccc2N1

O=C1CN=Cc2ccccc2N1

2 rings, 12 atoms, the 3H-1,4-Benzodiazepin-2-one, 1,2-dihydro- ring system.

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.

Ro 5-3663 suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

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Ro 5-3663 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

Pharmacological actions

  • Convulsants

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 Ro 5-3663 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 Ro 5-3663 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ro 5-3663, based on the data on this page

What is Ro 5-3663?

Ro 5-3663 is a chemical substance with the molecular formula C10H10N2O and a molar mass of 174.20 g/mol. Its CAS registry number is 70656-87-0. The IUPAC name is 5-methyl-1,3-dihydro-1,4-benzodiazepin-2-one.

What is the CAS number of Ro 5-3663?

The CAS registry number of Ro 5-3663 is 70656-87-0.

What is the molecular formula and weight of Ro 5-3663?

The molecular formula of Ro 5-3663 is C10H10N2O and its molar mass is 174.20 g/mol.

What is Ro 5-3663 used for?

Known uses and roles of Ro 5-3663 include building blocks in research and laboratory, screening compounds in research and laboratory and convulsants.

Is Ro 5-3663 hazardous?

No GHS hazard classification for Ro 5-3663 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 Ro 5-3663?

Ro 5-3663 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 Ro 5-3663?

Post a free request on CompoundList and suppliers of Ro 5-3663 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Ro 5-3663?

Suppliers quote Ro 5-3663 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 Ro 5-3663

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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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