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1-Benzocyclobutenecarbonitrile

Also known as: Bicyclo[4.2.0]octa-1,3,5-triene-7-carbonitrile, 1-Cyanobenzocyclobutene, 1,2-Dihydro-cyclobutabenzene-1-carbonitrile, 1,2-dihydro-cyclobutabenzen-1-carbonitril, 7-cyano bicyclo[4.2.0]1,3,5-octatriene, benzocyclobutene-1-carbonitrile, MFCD00001350, 1-CNBCB

1-Benzocyclobutenecarbonitrile (CAS 6809-91-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H7N and a molecular weight of 129.159 g/mol. Key properties include a boiling point of 259.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 101.7±17.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6809-91-2
Jingsj CID
J-1992630-8
Molecular Formula
C9H7N
Molecular Weight
129.159 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point259.5±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point101.7±17.1 °C
Exact Mass129.057846
PSA23.79000
LogP1.37
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.588

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-Benzocyclobutenecarbonitrile?

The CAS number of 1-Benzocyclobutenecarbonitrile is 6809-91-2.

What are the molecular formula and molecular weight of 1-Benzocyclobutenecarbonitrile?

1-Benzocyclobutenecarbonitrile has molecular formula C9H7N and molecular weight 129.159 g/mol.

Is 1-Benzocyclobutenecarbonitrile hazardous?

1-Benzocyclobutenecarbonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 1-Benzocyclobutenecarbonitrile?

For 1-Benzocyclobutenecarbonitrile, Upstream Products: 3-(2-Chlorophenyl)propanenitrile, Ethyl 2-(2-chlorophenyl)acetate, 2-(2-Chlorophenyl)ethanol; Downstream Products: 1-Bicyclo[4.2.0]octa-1,3,5-trien-7-ylmethanamine, 1,2-Dihydrobenzocyclobutene-1-carboxylic acid methyl ester, 1-Hydroxymethylbenzocyclobutene.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-Benzocyclobutenecarbonitrile (CAS 6809-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992630-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.