Date published: 2025-10-10

1-800-457-3801

SCBT Portrait Logo
Seach Input

(R)-Ibuprofen (CAS 51146-57-7)

5.0(1)
Write a reviewAsk a question

Datasheets

See product citations (6)

Alternate Names:
(αR)-α-Methyl-4-(2-methylpropyl)benzeneacetic Acid; (−)-Ibuprofen; (R)-2-(4-Isobutylphenyl)propanoic Acid; (R)-Ibuprofen; R-(−)-p-Isobutylhydratropic Acid
Application:
(R)-Ibuprofen is an inhibitor of Cox-1 and Cox-2
CAS Number:
51146-57-7
Purity:
≥98%
Molecular Weight:
206.28
Molecular Formula:
C13H18O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

QUICK LINKS

(R)-Ibuprofen inhibits the activity of the enzyme cyclooxygenase, specifically the COX-1 and COX-2 isoenzymes. By doing so, it prevents the conversion of arachidonic acid to prostaglandin H2, which is a precursor for the synthesis of prostaglandins and thromboxanes. This inhibition leads to a decrease in the production of prostaglandins. (R)-Ibuprofen′s mechanism of action involves reversible binding to the active site of the COX enzymes, thereby preventing the formation of the enzyme-substrate complex. (R)-Ibuprofen may have an effect on leukotriene synthesis, although the exact mechanism is not fully understood.


(R)-Ibuprofen (CAS 51146-57-7) References

  1. The effects of ibuprofen enantiomers on hepatocyte intermediary metabolism and mitochondrial respiration.  |  Knights, KM. and Drew, R. 1992. Biochem Pharmacol. 44: 1291-6. PMID: 1417953
  2. Mechanistic studies on the metabolic chiral inversion of R-ibuprofen in the rat.  |  Sanins, SM., et al. 1991. Drug Metab Dispos. 19: 405-10. PMID: 1676645
  3. The site of inversion of R(-)-ibuprofen: studies using rat in-situ isolated perfused intestine/liver preparations.  |  Jeffrey, P., et al. 1991. J Pharm Pharmacol. 43: 715-20. PMID: 1682447
  4. Renal handling and effects of S(+)-ibuprofen and R(-)-ibuprofen in the rat isolated perfused kidney.  |  Cox, PG., et al. 1991. Br J Pharmacol. 103: 1542-6. PMID: 1884108
  5. Pharmacokinetics of ibuprofen enantiomers in dogs.  |  Beck, WS., et al. 1991. Chirality. 3: 165-9. PMID: 1911048
  6. Stereoselective disposition of ibuprofen and flurbiprofen in rats.  |  Knihinicki, RD., et al. 1990. Chirality. 2: 134-40. PMID: 2252842
  7. Liquid-chromatographic assay of ibuprofen enantiomers in plasma.  |  Mehvar, R., et al. 1988. Clin Chem. 34: 493-6. PMID: 3349598
  8. A layer-by-layer assembled D/L-arginine-calix[4]arene-Si-surface for macroscopic enantio-selective discrimination of (R)/(S)-ibuprofen.  |  Li, X., et al. 2021. Chem Commun (Camb). 57: 5706-5709. PMID: 33982718
  9. Update on ibuprofen: review article.  |  Busson, M. 1986. J Int Med Res. 14: 53-62. PMID: 3516751
  10. Equipotent inhibition by R(-)-, S(+)- and racemic ibuprofen of human polymorphonuclear cell function in vitro.  |  Villanueva, M., et al. 1993. Br J Clin Pharmacol. 35: 235-42. PMID: 8385973
  11. Differential inhibition of prostaglandin endoperoxide synthase (cyclooxygenase) isozymes by aspirin and other non-steroidal anti-inflammatory drugs.  |  Meade, EA., et al. 1993. J Biol Chem. 268: 6610-4. PMID: 8454631
  12. Effects of ibuprofen enantiomers and its coenzyme A thioesters on human prostaglandin endoperoxide synthases.  |  Neupert, W., et al. 1997. Br J Pharmacol. 122: 487-92. PMID: 9351505
  13. Clinical pharmacokinetics of ibuprofen. The first 30 years.  |  Davies, NM. 1998. Clin Pharmacokinet. 34: 101-54. PMID: 9515184

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

(R)-Ibuprofen, 200 mg

sc-200625
200 mg
$250.00

For the optical rotation, do you know what concentration and solvent was used?  This way I can find out the %ee based on the information you have.

Asked by: two2igm05
Thank you for your question. The optical rotation of (R)-Ibuprofen, sc-200625, was determined using an R-Ibuprofen concentratin of 2.5% and a solvent concentration of 95% ethanol.
Answered by: TechService7
Date published: 2016-12-21
  • y_2025, m_10, d_9, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_200625, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 106ms
  • QUESTIONS, PRODUCT
Rated 5 out of 5 by from Various publications cite (R)Various publications cite (R)-Ibuprofen as a well known nonsteroidal anti-inflammatory, that is the less active enantiomer of ibuprofen. -SCBT Publication Review
Date published: 2015-03-13
  • y_2025, m_10, d_9, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_200625, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 12ms
  • REVIEWS, PRODUCT
(R)-Ibuprofen is rated 5.0 out of 5 by 1.
  • y_2025, m_10, d_9, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_200625, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 126ms
  • REVIEWS, PRODUCT