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3-PENTENENITRILE

Also known as: trans-3-pentenenitrile, (E)-3-pentenenitrile, 1-cyano-2-butene, 2-buten-1-yl cyanide, crotyl cyanide, pent-3-enenitrile, 3-pentenonitrile, 3-pentene-nitrile, trans-1-cyano-2-butene

3-PENTENENITRILE (CAS 16529-66-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H7N and a molecular weight of 81.11580 g/mol. Key properties include a boiling point of 112ºC at 760mmHg, a density of 0.827g/cm3 and a flash point of 28.5ºC. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16529-66-1
Jingsj CID
J-34837-8
Molecular Formula
C5H7N
Molecular Weight
81.11580 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point112ºC at 760mmHg
Density0.827g/cm3
Flash Point28.5ºC
Exact Mass81.05780
PSA23.79000
LogP1.47618
Vapor Pressure19mmHg at 25°C
Refractive Indexn20/D 1.422

GHS Safety & Compliance

Flammable / Acute ToxicitySignal word: Danger
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H331 — Toxic if inhaled

Frequently Asked Questions

What is the CAS number of 3-PENTENENITRILE?

The CAS number of 3-PENTENENITRILE is 16529-66-1.

What are the molecular formula and molecular weight of 3-PENTENENITRILE?

3-PENTENENITRILE has molecular formula C5H7N and molecular weight 81.11580 g/mol.

Is 3-PENTENENITRILE hazardous?

3-PENTENENITRILE has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H331 — Toxic if inhaled.

What are the upstream and downstream products of 3-PENTENENITRILE?

For 3-PENTENENITRILE, Upstream Products: butadiene, Dipropyl sulfide, 2-Methyl-3-butenenitrile; Downstream Products: Adiponitrile, 2-Methylglutaronitrile, 2-ethylbutanedinitrile.

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

Last updated:

How to cite: Jingsj. "3-PENTENENITRILE (CAS 16529-66-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34837-8 (accessed 2026-11-09).

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