(R)-Naproxen

(R)-萘普生

Also known as: (R)-2-(6-Methoxynaphthalen-2-yl)propanoic acid, (R)-(-)-6-Methoxy-α-methyl-2-naphthaleneacetic acid, (R)-6-Methoxy-α-methyl-2-naphthaleneacetic acid, (R)-2-(6-Methoxy-2-naphthyl)propionic acid, (2R)-2-(6-Methoxynaphthalen-2-yl)propanoic acid, MFCD00870716, Naproxen EP Impurity G, Naproxen USP RC G

(R)-Naproxen (CAS 23979-41-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H14O3 and a molecular weight of 230.259 g/mol. It is also known as (R)-2-(6-Methoxynaphthalen-2-yl)propanoic acid, (R)-(-)-6-Methoxy-α-methyl-2-naphthaleneacetic acid and (R)-6-Methoxy-α-methyl-2-naphthaleneacetic acid. Key properties include a melting point of 156-158ºC(lit.), 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. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23979-41-1
Jingsj CID
J-28917-7
Molecular Formula
C14H14O3
Chinese Name
(R)-萘普生
Molecular Weight
230.259 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point156-158ºC(lit.)
Boiling Point403.9±20.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point154.5±15.3 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (R)-Naproxen?

The CAS number of (R)-Naproxen is 23979-41-1.

What are the molecular formula and molecular weight of (R)-Naproxen?

(R)-Naproxen has molecular formula C14H14O3 and molecular weight 230.259 g/mol.

Is (R)-Naproxen hazardous?

(R)-Naproxen has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(R)-Naproxen (CAS 23979-41-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28917-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.