(±)-2-(6-Methoxy-2-naphthyl)propionic acid

Also known as: 2-(6-Methoxynaphthalen-2-yl)propanoic acid, (±)-Naproxen, Racemic naproxen, DL-Naproxen, rac-Naproxen, 2-(6-Methoxy-2-naphthyl)propanoic acid, (±)-6-Methoxy-α-methyl-2-naphthaleneacetic acid, (RS)-Naproxen

(±)-2-(6-Methoxy-2-naphthyl)propionic acid (CAS 23981-80-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H14O3 and a molecular weight of 230.259 g/mol. Key properties include a melting point of 157ºC, a boiling point of 403.9±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 154.5±15.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 23981-80-8
Jingsj CID: J-21642-2
Molecular Formula: C₁₄H₁₄O₃
Molecular Weight: 230.259 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	157ºC
Boiling Point	403.9±20.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	154.5±15.3 °C
Exact Mass	230.094299
PSA	46.53000
LogP	3.00
Vapor Pressure	0.0±1.0 mmHg at 25°C
Refractive Index	1.609
Storage Conditions	Refrigerator

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (±)-2-(6-Methoxy-2-naphthyl)propionic acid?

The CAS number of (±)-2-(6-Methoxy-2-naphthyl)propionic acid is 23981-80-8.

What are the molecular formula and molecular weight of (±)-2-(6-Methoxy-2-naphthyl)propionic acid?

(±)-2-(6-Methoxy-2-naphthyl)propionic acid has molecular formula C14H14O3 and molecular weight 230.259 g/mol.

What are the upstream and downstream products of (±)-2-(6-Methoxy-2-naphthyl)propionic acid?

For (±)-2-(6-Methoxy-2-naphthyl)propionic acid, Upstream Products: 2-Methoxy-6-vinylnaphthalene, 1-(6-Methoxynaphthalen-2-yl)propan-1-one; Downstream Products: Tetriprofen, tryptamine, 4-Hydroxyquinoline.

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. "(±)-2-(6-Methoxy-2-naphthyl)propionic acid (CAS 23981-80-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21642-2 (accessed 2026-11-09).

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