1,4,5-Trimethylnaphthalene

Also known as: 1,4,5-Trimethyl naphthalene, 1,4,5-Trimethylnaphthalin, 1,4,5-trimethylnaphtalene, 1,4,5-trimethylnaphthalene, 1,4,8-trimethylnaphthalene, 1,5,8-Trimethylnaphthalin, EINECS 218-356-2, Naphthalene, 1,4,5-trimethyl-, Naphthalene,1,4,5-trimethyl

1,4,5-Trimethylnaphthalene (CAS 2131-41-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H14 and a molecular weight of 170.250 g/mol. Key properties include a melting point of 60ºC, a boiling point of 290.3±20.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 130.5±12.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2131-41-1
Jingsj CID: J-20459-0
Molecular Formula: C₁₃H₁₄
Molecular Weight: 170.250 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	60ºC
Boiling Point	290.3±20.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	130.5±12.5 °C
Exact Mass	170.109543
LogP	4.83
Vapor Pressure	0.0±0.3 mmHg at 25°C
Refractive Index	1.595

Customs & Trade Information

HS Code	2902909090
Summary	2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,4,5-Trimethylnaphthalene?

The CAS number of 1,4,5-Trimethylnaphthalene is 2131-41-1.

What are the molecular formula and molecular weight of 1,4,5-Trimethylnaphthalene?

1,4,5-Trimethylnaphthalene has molecular formula C13H14 and molecular weight 170.250 g/mol.

What are the upstream and downstream products of 1,4,5-Trimethylnaphthalene?

For 1,4,5-Trimethylnaphthalene, Upstream Products: 1,8-Dimethylnaphthalene, p-Xylene, γ-Valerolactone.

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. "1,4,5-Trimethylnaphthalene (CAS 2131-41-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20459-0 (accessed 2026-11-06).

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