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trans-2-Butene-1,4-diol

Also known as: (E)-2-Butene-1,4-diol, (2E)-2-Butene-1,4-diol, (E)-but-2-ene-1,4-diol, trans-1,4-dihydroxy-2-butene, 2-Butene-1,4-diol, trans-, trans-2-Butene-1,4-diol

trans-2-Butene-1,4-diol (CAS 821-11-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H8O2 and a molecular weight of 88.10510 g/mol. Key properties include a melting point of 7ºC(lit.), a boiling point of 131.5ºC12 mm Hg(lit.), a density of 1.07 g/mL at 25ºC(lit.) and a flash point of >110.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
821-11-4
Jingsj CID
J-1520568-2
Molecular Formula
C4H8O2
Molecular Weight
88.10510 g/mol
Category
Alcohols
Last updated
11/3/2026

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Physicochemical Properties

Melting Point7ºC(lit.)
Boiling Point131.5ºC12 mm Hg(lit.)
Density1.07 g/mL at 25ºC(lit.)
Flash Point>110.0 °C
Exact Mass88.05240
PSA40.46000
Refractive Indexn20/D 1.478(lit.)

Frequently Asked Questions

What is the CAS number of trans-2-Butene-1,4-diol?

The CAS number of trans-2-Butene-1,4-diol is 821-11-4.

What are the molecular formula and molecular weight of trans-2-Butene-1,4-diol?

trans-2-Butene-1,4-diol has molecular formula C4H8O2 and molecular weight 88.10510 g/mol.

What are the upstream and downstream products of trans-2-Butene-1,4-diol?

For trans-2-Butene-1,4-diol, Upstream Products: 2-Butyne-1,4-diol, Diethyl fumarate, cis-2-Butene-1,4-diol; Downstream Products: 2-Hydroxytetrahydrofuran, 1,4-Butanediol, 2,5-Dimethoxy-2,5-dihydrofuran.

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

Last updated:

How to cite: Jingsj. "trans-2-Butene-1,4-diol (CAS 821-11-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1520568-2 (accessed 2026-11-09).

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