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Dibutyl fumarate

Also known as: Dibutyl (2E)-2-butenedioate, 2-Butenedioic acid (2E)-, dibutyl ester, Fumaric acid dibutyl ester, Di-n-butyl fumarate, dibutylfumarate, dibutyl but-2-enedioate, Butyl fumarate, RC Comonomer DBF, Stafex DBF

Dibutyl fumarate (CAS 105-75-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H20O4 and a molecular weight of 228.285 g/mol. Key properties include a melting point of -18ºC, a boiling point of 280.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 136.4±18.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
105-75-9
Jingsj CID
J-1519989-0
Molecular Formula
C12H20O4
Molecular Weight
228.285 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-18ºC
Boiling Point280.0±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point136.4±18.2 °C
Exact Mass228.136154
PSA52.60000
LogP3.81
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.452

Customs & Trade Information

HS Code2917190090
Summary2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives 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 Dibutyl fumarate?

The CAS number of Dibutyl fumarate is 105-75-9.

What are the molecular formula and molecular weight of Dibutyl fumarate?

Dibutyl fumarate has molecular formula C12H20O4 and molecular weight 228.285 g/mol.

What are the upstream and downstream products of Dibutyl fumarate?

For Dibutyl fumarate, Upstream Products: Maleic anhydride, 1-Butanol, Butyl acrylate; Downstream Products: Dibutyl itaconate.

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

Last updated:

How to cite: Jingsj. "Dibutyl fumarate (CAS 105-75-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519989-0 (accessed 2026-11-09).

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