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Heterocyclic building blocks

Cyclopenin

Also known as Cyclopenine, 4-methyl-3'-phenylspiro[1H-1,4-benzodiazepine-3,2'-oxirane]-2,5-dione, 4-Methyl-3'-phenylspiro(3H-1,4-benzodiazepine-3,2'-oxirane)-2,5(1H,4H)-dione

CAS 20007-87-8Formula C17H14N2O3Molar mass 294.31 g/mol
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Cyclopenin chemical structure, C17H14N2O3, CAS 20007-87-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
20007-87-8
Formula
C17H14N2O3
Molar mass
294.31 g/mol
HS code
293379
Category
Heterocyclic building blocks

What is Cyclopenin?

Plain description, key identifiers and synonyms

Cyclopenin is a benzodiazepine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-methyl-3'-phenylspiro[1H-1,4-benzodiazepine-3,2'-oxirane]-2,5-dione
CAS number
20007-87-8
Molecular formula
C17H14N2O3
MDL number
MFCD14635381
InChIKey
APLKWZASYUZSBL-UHFFFAOYSA-N
InChI
InChI=1S/C17H14N2O3/c1-19-15(20)12-9-5-6-10-13(12)18-16(21)17(19)14(22-17)11-7-3-2-4-8-11/h2-10,14H,1H3,(H,18,21)
SMILES (canonical and isomeric)
CN1C(=O)C2=CC=CC=C2NC(=O)C13C(O3)C4=CC=CC=C4

Synonyms

  • Cyclopenine
  • 4-methyl-3'-phenylspiro[1H-1,4-benzodiazepine-3,2'-oxirane]-2,5-dione
  • 4-Methyl-3'-phenylspiro(3H-1,4-benzodiazepine-3,2'-oxirane)-2,5(1H,4H)-dione
  • 4-methyl-3'-phenylspiro(1H-1,4-benzodiazepine-3,2'-oxirane)-2,5-dione
  • (-)-Cyclopenine
  • (-)-Cyclopenin
  • (3S,3'R)-4-methyl-3'-phenylspiro[1H-1,4-benzodiazepine-3,2'-oxirane]-2,5-dione
  • (+/-)-Cyclopenin
  • Spiro[3H-1,4-benzodiazepine-3,2'-oxirane]-2,5(1H,4H)-dione, 4-methyl-3'-phenyl-, cis-(-)-
  • Spiro[3H-1,2'-oxirane]-2,5(1H,4H)-dione, 4-methyl-3'-phenyl-, cis-(-)-
  • Spiro[3H-1,2'-oxirane]-2,5(1H,4H)-dione, 4-methyl-3'-phenyl-
  • 4-methyl-3'-phenyl-spiro[1H-1,4-benzodiazepine-3,2'-oxirane]-2,5-dione
  • Spiro[3H-1,4-benzodiazepine-3,2'-oxirane]-2,5(1H,4H)-dione, 4-methyl-3'-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
294.31 g/molcalc.
Exact mass
294.1004 Dacalc.
LogP (octanol/water)
2.18calc.
Topological polar surface area
61.94 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
22calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.18calc.
Formal charge
0calc.
Stereocentres
2calc.
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=C1NC2(OC2c2ccccc2)C(=O)Nc2ccccc21

O=C1NC2(OC2c2ccccc2)C(=O)Nc2ccccc21

4 rings, 21 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.

Cyclopenin suppliers

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

Frequently asked questions

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

What is Cyclopenin?

Cyclopenin is a benzodiazepine.

What is the CAS number of Cyclopenin?

The CAS registry number of Cyclopenin is 20007-87-8.

What is the molecular formula and weight of Cyclopenin?

The molecular formula of Cyclopenin is C17H14N2O3 and its molar mass is 294.31 g/mol.

What is Cyclopenin used for?

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

Is Cyclopenin hazardous?

No GHS hazard classification for Cyclopenin 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 Cyclopenin?

Cyclopenin 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 Cyclopenin?

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What is the price of Cyclopenin?

Suppliers quote Cyclopenin 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 Cyclopenin

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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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