2,3-Dibromobutane-1,4-diol

Also known as: 2,3-dibromo-1,4-butanediol, (±)-2,3-dibromo-1,4-butanediol, 1,4-dihydroxy-2,3-dibromobutane, 2,3-dibromo-butane-1,4-diol, 2,3-Dibrom-butan-1,4-diol

2,3-Dibromobutane-1,4-diol (CAS 20163-90-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H8Br2O2 and a molecular weight of 247.91300 g/mol. Key properties include a melting point of 88-90ºC(lit.), a boiling point of 148-150ºC1.5 mm Hg(lit.) and a density of 1.256 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20163-90-0
Jingsj CID: J-1355451-3
Molecular Formula: C₄H₈Br₂O₂
Molecular Weight: 247.91300 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	88-90ºC(lit.)
Boiling Point	148-150ºC1.5 mm Hg(lit.)
Density	1.256 g/cm3
Exact Mass	245.88900
PSA	40.46000
LogP	0.49800
Vapor Pressure	3.73E-05mmHg at 25°C
Refractive Index	1.583

Customs & Trade Information

HS Code	2905590090
Summary	2905590090 other halogenated, sulphonated, nitrated or nitrosated derivatives of acyclic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,3-Dibromobutane-1,4-diol?

The CAS number of 2,3-Dibromobutane-1,4-diol is 20163-90-0.

What are the molecular formula and molecular weight of 2,3-Dibromobutane-1,4-diol?

2,3-Dibromobutane-1,4-diol has molecular formula C4H8Br2O2 and molecular weight 247.91300 g/mol.

What are the upstream and downstream products of 2,3-Dibromobutane-1,4-diol?

For 2,3-Dibromobutane-1,4-diol, Upstream Products: cis-2-Butene-1,4-diol, trans-2-Butene-1,4-diol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,3-Dibromobutane-1,4-diol (CAS 20163-90-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1355451-3 (accessed 2026-11-09).

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