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Benzenepropanenitrile

Also known as: (2-Cyanoethyl)benzene, 1-Cyano-2-phenylethane, 1-Phenyl-2-cyanoethane, 3-Phenylpropanenitrile, 3-Phenylpropanonitrile, 3-Phenylpropionitrile, Dihydrocinnamonitrile, EINECS 211-447-8, Hydrocinnamonitrile, MFCD00001961

Benzenepropanenitrile (CAS 645-59-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H9N and a molecular weight of 131.17400 g/mol. Key properties include a melting point of −2-−1 °C(lit.), a boiling point of 113 °C9 mm Hg(lit.), a density of 1.001 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
645-59-0
Jingsj CID
J-5273-7
Molecular Formula
C9H9N
Molecular Weight
131.17400 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/3/2026

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Physicochemical Properties

Melting Point−2-−1 °C(lit.)
Boiling Point113 °C9 mm Hg(lit.)
Density1.001 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass131.07300
PSA23.79000
LogP2.14278
Refractive Indexn20/D 1.521(lit.)

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled

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 Benzenepropanenitrile?

The CAS number of Benzenepropanenitrile is 645-59-0.

What are the molecular formula and molecular weight of Benzenepropanenitrile?

Benzenepropanenitrile has molecular formula C9H9N and molecular weight 131.17400 g/mol.

Is Benzenepropanenitrile hazardous?

Benzenepropanenitrile has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of Benzenepropanenitrile?

For Benzenepropanenitrile, Upstream Products: trans-Cinnamonitrile, Cinnamonitrile, 3-Phenylpropylamine; Downstream Products: Phloretin, Methyl 3-phenylpropanoate, 3-Phenylpropionaldehyde.

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

Last updated:

How to cite: Jingsj. "Benzenepropanenitrile (CAS 645-59-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5273-7 (accessed 2026-11-06).

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