(E)-1-phenylbut-2-en-1-one

反式-1-苯基-2-丁烯-1-酮

Also known as: trans-1-Phenyl-2-buten-1-one, trans-Crotonophenone, (2E)-1-Phenyl-2-buten-1-one, NSC 28846

(E)-1-phenylbut-2-en-1-one (CAS 35845-66-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H10O and a molecular weight of 146.18600 g/mol. It is also known as trans-1-Phenyl-2-buten-1-one, trans-Crotonophenone and (2E)-1-Phenyl-2-buten-1-one. Key properties include a boiling point of 225.7ºC at 760mmHg, a density of 0.99g/cm3 and a flash point of 86.3ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35845-66-0
Jingsj CID
J-1500674-3
Molecular Formula
C10H10O
Chinese Name
反式-1-苯基-2-丁烯-1-酮
Molecular Weight
146.18600 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point225.7ºC at 760mmHg
Density0.99g/cm3
Flash Point86.3ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (E)-1-phenylbut-2-en-1-one?

The CAS number of (E)-1-phenylbut-2-en-1-one is 35845-66-0.

What are the molecular formula and molecular weight of (E)-1-phenylbut-2-en-1-one?

(E)-1-phenylbut-2-en-1-one has molecular formula C10H10O and molecular weight 146.18600 g/mol.

Is (E)-1-phenylbut-2-en-1-one hazardous?

(E)-1-phenylbut-2-en-1-one has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "(E)-1-phenylbut-2-en-1-one (CAS 35845-66-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500674-3 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.