1,2,5,6-Tetramethylnaphthalene

Also known as: 1,2,5,6-Tetramethyl-naphthalin, 1,2,5,6-tetramethyl-naphthalene, 1,2,5,6-tetramethylnaphtalene, 1,2,5,6-tetramethylnaphthalene, Naphthalene, 1,2,5,6-tetramethyl-, Naphthalene,1,2,5,6-tetramethyl

1,2,5,6-Tetramethylnaphthalene (CAS 2131-43-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H16 and a molecular weight of 184.277 g/mol. Key properties include a boiling point of 313.7±37.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 148.6±17.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2131-43-3
Jingsj CID: J-1094973-2
Molecular Formula: C₁₄H₁₆
Molecular Weight: 184.277 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	313.7±37.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	148.6±17.2 °C
Exact Mass	184.125198
LogP	5.29
Vapor Pressure	0.0±0.3 mmHg at 25°C
Refractive Index	1.587

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 1,2,5,6-Tetramethylnaphthalene?

The CAS number of 1,2,5,6-Tetramethylnaphthalene is 2131-43-3.

What are the molecular formula and molecular weight of 1,2,5,6-Tetramethylnaphthalene?

1,2,5,6-Tetramethylnaphthalene has molecular formula C14H16 and molecular weight 184.277 g/mol.

What are the upstream and downstream products of 1,2,5,6-Tetramethylnaphthalene?

For 1,2,5,6-Tetramethylnaphthalene, Upstream Products: Formaldehyde, 2,6-DIMETHYLNAPHTHALENE, Echinocystic acid.

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. "1,2,5,6-Tetramethylnaphthalene (CAS 2131-43-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1094973-2 (accessed 2026-11-09).

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