(R)-(-)-Ibuprofen
Also known as: (R)-Ibuprofen, (-)-Ibuprofen, l-Ibuprofen, Levibuprofen, (2R)-2-[4-(2-methylpropyl)phenyl]propanoic acid, (R)-2-(4-Isobutylphenyl)propanoic acid, R-(-)-p-Isobutylhydratropic acid, UNII:WK2XYI10QM
(R)-(-)-Ibuprofen (CAS 51146-57-7) 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 41-42ºC, 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.
- 51146-57-7
- Jingsj CID
- J-1958344-9
- Molecular Formula
- C13H18O2
- Molecular Weight
- 206.281 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 41-42ºC |
|---|---|
| Boiling Point | 319.6±11.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 216.7±14.4 °C |
| Exact Mass | 206.130676 |
| PSA | 37.30000 |
| LogP | 3.72 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.519 |
Activity & Biological Data
| Target | NF-κB |
|---|---|
| Additional Information | [1]. Evans AM, et al. Comparative pharmacology of S(+)-ibuprofen and (RS)-ibuprofen. Clin Rheumatol. 2001 Nov;20 Suppl 1:S9-14. [2]. Scheuren N, et al. Modulation of transcription factor NF-kappaB by enantiomers of the nonsteroidal drug ibuprofen. Br J Pharmacol. 1998 Feb;123(4):645-52. |
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 (R)-(-)-Ibuprofen?
The CAS number of (R)-(-)-Ibuprofen is 51146-57-7.
What are the molecular formula and molecular weight of (R)-(-)-Ibuprofen?
(R)-(-)-Ibuprofen has molecular formula C13H18O2 and molecular weight 206.281 g/mol.
What are the upstream and downstream products of (R)-(-)-Ibuprofen?
For (R)-(-)-Ibuprofen, Upstream Products: Ibuprofen, Di-1-naphthylmethanol, 2-(4-isobutylphenyl)propionaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(R)-(-)-Ibuprofen (CAS 51146-57-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958344-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.