(E)-4-Chlorobut-2-en-1-ol

反式-4-氯-2-丁烯-1-醇

Also known as: Trans-4-Chloro-2-Buten-1-ol, (2E)-4-Chlorobut-2-en-1-ol, (2E)-4-chloro-2-ene-1-ol, (E)-4-chlorobut-2-en-1-ol, 1-Chloro-4-hydroxy-2-butene, 2-Buten-1-ol, 4-chloro-, (2E)-, trans-4-Chlorobut-2-en-1-ol, 4-chloro-2-buten-1-ol, 4-chloro-but-2c-en-1-ol

(E)-4-Chlorobut-2-en-1-ol (CAS 1775-39-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H7ClO and a molecular weight of 106.551 g/mol. It is also known as Trans-4-Chloro-2-Buten-1-ol, (2E)-4-Chlorobut-2-en-1-ol and (2E)-4-chloro-2-ene-1-ol. Key properties include a boiling point of 182.8±28.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 83.2±19.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1775-39-9
Jingsj CID
J-1523125-9
Molecular Formula
C4H7ClO
Chinese Name
反式-4-氯-2-丁烯-1-醇
Molecular Weight
106.551 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point182.8±28.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point83.2±19.4 °C

Frequently Asked Questions

What is the CAS number of (E)-4-Chlorobut-2-en-1-ol?

The CAS number of (E)-4-Chlorobut-2-en-1-ol is 1775-39-9.

What are the molecular formula and molecular weight of (E)-4-Chlorobut-2-en-1-ol?

(E)-4-Chlorobut-2-en-1-ol has molecular formula C4H7ClO and molecular weight 106.551 g/mol.

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

Last updated:

How to cite: Jingsj. "(E)-4-Chlorobut-2-en-1-ol (CAS 1775-39-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523125-9 (accessed 2026-10-22).

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