2,5-dimethylstyrene

2,5-二甲基苯乙烯

Also known as: 1,4-Dimethyl-2-ethenylbenzene, 1,4-Dimethyl-2-vinylbenzene, 2,5-Dimethylstyrene, 2-ethenyl-1,4-dimethyl-benzene, 2-ethenyl-1,4-dimethylbenzene, 2-vinyl-p-xylene, Benzene,2-ethenyl-1,4-dimethyl, EINECS 218-028-9, MFCD00008614, Styrene,2,5-dimethyl, o-vinyl-p-xylene

2,5-dimethylstyrene (CAS 2039-89-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H12 and a molecular weight of 132.20200 g/mol. It is also known as 1,4-Dimethyl-2-ethenylbenzene, 1,4-Dimethyl-2-vinylbenzene and 2,5-Dimethylstyrene. Key properties include a melting point of −35 °C(lit.), a boiling point of 71-72 °C10 mm Hg(lit.), a density of 0.904 g/mL at 25 °C(lit.) and a flash point of 147 °F. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2039-89-6
Jingsj CID
J-50112-9
Molecular Formula
C10H12
Chinese Name
2,5-二甲基苯乙烯
Molecular Weight
132.20200 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−35 °C(lit.)
Boiling Point71-72 °C10 mm Hg(lit.)
Density0.904 g/mL at 25 °C(lit.)
Flash Point147 °F

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,5-dimethylstyrene?

The CAS number of 2,5-dimethylstyrene is 2039-89-6.

What are the molecular formula and molecular weight of 2,5-dimethylstyrene?

2,5-dimethylstyrene has molecular formula C10H12 and molecular weight 132.20200 g/mol.

Is 2,5-dimethylstyrene hazardous?

2,5-dimethylstyrene 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. "2,5-dimethylstyrene (CAS 2039-89-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-50112-9 (accessed 2026-10-22).

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