2-Methylnaphthalene
Also known as: 2-METHYL NAPHTHALENE, 2-METHYLNAPHTHALENE, 2-METHYLNAPHTHALENE FOR SYNTHESIS, 2-METHYLNAPTHALENE, 2-Methylnaphth, 2-Methylnaphthalen, 2-Methylnaphthalen-1-carbonsaeure, 2-methyInaphthalene, 2-methyl, 2-methyl-1-naphthalenecarboxylic acid, 2-methyl-1-naphthoic acid, 2-methyl-1-naphtoic acid, 2-methyl-naphthalen, 2-methyl-naphthalene, 2-methylnaphtalene, 2-methylnaphthalene, 2-methylnaphthoic acid, 2-metylnaphtalene, B-METHYLNAPHTHALENE, EINECS 202-078-3
2-Methylnaphthalene (CAS 91-57-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H10 and a molecular weight of 142.197 g/mol. Key properties include a melting point of 34-36 °C(lit.), a boiling point of 239.9±3.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 97.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91-57-6
- Jingsj CID
- J-1403484-5
- Molecular Formula
- C11H10
- Molecular Weight
- 142.197 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-36 °C(lit.) |
|---|---|
| Boiling Point | 239.9±3.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 97.8±0.0 °C |
| Exact Mass | 142.078247 |
| LogP | 3.91 |
| Vapor Pressure | 0.1±0.2 mmHg at 25°C |
| Refractive Index | 1.617 |
| Additional Property | 0.00246 g/100 mL |
| Additional Property | 34.5℃ |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Customs & Trade Information
| HS Code | 29029080 |
|---|
Frequently Asked Questions
What is the CAS number of 2-Methylnaphthalene?
The CAS number of 2-Methylnaphthalene is 91-57-6.
What are the molecular formula and molecular weight of 2-Methylnaphthalene?
2-Methylnaphthalene has molecular formula C11H10 and molecular weight 142.197 g/mol.
Is 2-Methylnaphthalene hazardous?
2-Methylnaphthalene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of 2-Methylnaphthalene?
For 2-Methylnaphthalene, Upstream Products: 1-Bromonaphthalene, Methyllithium, 2-Naphthalenemethanol; Downstream Products: 3-methylnaphthalen-2-amine, (2-Methylnaphthalen-1-yl)(naphthalen-2-yl)methanone, 4-Methylphthalic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methylnaphthalene (CAS 91-57-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1403484-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.