2-Naphthylacetic acid
Also known as: 2-Naphthaleneacetic acid, β-Naphthylacetic acid, β-Naphthaleneacetic acid, 2-NAA, Betoxan, Naphthalen-2-ylacetic acid, NSC 301
2-Naphthylacetic acid (CAS 581-96-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H10O2 and a molecular weight of 186.207 g/mol. Key properties include a melting point of 141-143 °C(lit.), a boiling point of 373.2±11.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 270.1±14.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 581-96-4
- Jingsj CID
- J-28712-7
- Molecular Formula
- C12H10O2
- Molecular Weight
- 186.207 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 141-143 °C(lit.) |
|---|---|
| Boiling Point | 373.2±11.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 270.1±14.4 °C |
| Exact Mass | 186.068085 |
| PSA | 37.30000 |
| LogP | 2.74 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.652 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic 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 2-Naphthylacetic acid?
The CAS number of 2-Naphthylacetic acid is 581-96-4.
What are the molecular formula and molecular weight of 2-Naphthylacetic acid?
2-Naphthylacetic acid has molecular formula C12H10O2 and molecular weight 186.207 g/mol.
Is 2-Naphthylacetic acid hazardous?
2-Naphthylacetic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-Naphthylacetic acid?
For 2-Naphthylacetic acid, Upstream Products: 2-(Chloromethyl)naphthalene, Ethyl 2-(naphthalen-2-yl)acetate, 2-Naphthalenemethanol; Downstream Products: 2-(2-Naphthyl)acetyl chloride, (3S)-2,2'-diphenyl-[3,3'-biphenanthrene]-4,4'-diol, 2-(2-Bromoethyl)naphthalene.
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-Naphthylacetic acid (CAS 581-96-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28712-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.