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(S)-(+)-Ibuprofen

Also known as: Dexibuprofen, (S)-Ibuprofen, (+)-(S)-Ibuprofen, (2S)-2-(4-Isobutylphenyl)propanoic acid, (S)-2-(4-Isobutylphenyl)propanoic acid, MFCD00069289

(S)-(+)-Ibuprofen (CAS 51146-56-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H18O2 and a molecular weight of 206.281 g/mol. Key properties include a melting point of 49-53ºC, a boiling point of 319.6±11.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 216.7±14.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51146-56-6
Jingsj CID
J-39874-3
Molecular Formula
C13H18O2
Molecular Weight
206.281 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point49-53ºC
Boiling Point319.6±11.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point216.7±14.4 °C
Exact Mass206.130676
PSA37.30000
LogP3.72
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.519

Customs & Trade Information

HS Code2916399090
Summary2916399090 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 (S)-(+)-Ibuprofen?

The CAS number of (S)-(+)-Ibuprofen is 51146-56-6.

What are the molecular formula and molecular weight of (S)-(+)-Ibuprofen?

(S)-(+)-Ibuprofen has molecular formula C13H18O2 and molecular weight 206.281 g/mol.

What are the upstream and downstream products of (S)-(+)-Ibuprofen?

For (S)-(+)-Ibuprofen, Upstream Products: Ibuprofen, Di-1-naphthylmethanol, Methyl 2-(4-isobutylphenyl)propanoate; Downstream Products: Ibuprofen sodium, (R)-(-)-Ibuprofen, Ibuprofen.

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

Last updated:

How to cite: Jingsj. "(S)-(+)-Ibuprofen (CAS 51146-56-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39874-3 (accessed 2026-11-09).

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