(R)-(-)-Ibuprofen

Modify Date: 2026-07-04 19:45:09

(R)-(-)-Ibuprofen Structure
(R)-(-)-Ibuprofen structure
Common Name (R)-(-)-Ibuprofen
CAS Number 51146-57-7 Molecular Weight 206.281
Density 1.0±0.1 g/cm3 Boiling Point 319.6±11.0 °C at 760 mmHg
Molecular Formula C13H18O2 Melting Point 41-42ºC
MSDS N/A Flash Point 216.7±14.4 °C

 Use of (R)-(-)-Ibuprofen


(R)-(-)-Ibuprofen is the R enantiomer of Ibuprofen, inactive on COX, inhibits NF-κB activation; (R)-(-)-Ibuprofen exhibits anti-inflammatory and antinociceptive effects.

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name levibuprofen
Synonym More Synonyms

 (R)-(-)-Ibuprofen Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description (R)-(-)-Ibuprofen is the R enantiomer of Ibuprofen, inactive on COX, inhibits NF-κB activation; (R)-(-)-Ibuprofen exhibits anti-inflammatory and antinociceptive effects.
Related Catalog
Target

NF-κB

In Vitro (R)-(-)-Ibuprofen is the R enantiomer of Ibuprofen, with no inhibitory effect on COX, but is involved in pathways of lipid metabolism and is incorporated into triglycerides along with endogenous fatty acids[1]. (R)-(-)-Ibuprofen (1 μM) significantly reduces NF-κB activation and completely prevents NF-κB induction at 10 μM. (R)-(-)-Ibuprofen inhibits NF-κB luciferase activity with an IC50 of 121.8 μM, weaker than that of S(+)-ibuprofen (IC50, 61.7 μM). Furthermore, (R)-(-)-Ibuprofen (10 mM) has no effect on HSF[2].
References

[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.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.0±0.1 g/cm3
Boiling Point 319.6±11.0 °C at 760 mmHg
Melting Point 41-42ºC
Molecular Formula C13H18O2
Molecular Weight 206.281
Flash Point 216.7±14.4 °C
Exact Mass 206.130676
PSA 37.30000
LogP 3.72
Vapour Pressure 0.0±0.7 mmHg at 25°C
Index of Refraction 1.519
InChIKey HEFNNWSXXWATRW-SNVBAGLBSA-N
SMILES CC(C)Cc1ccc(C(C)C(=O)O)cc1

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

HS Code 2916399090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

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%

 (R)-(-)-IbuprofenBioassay

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This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: DRUGMATRIX: Opiate delta1 (OP1, DOP) radioligand binding (ligand: [3H] Naltrindole)
Source: ChEMBL
Target: Delta-type opioid receptor
External Id: CHEMBL1909180
Name: DRUGMATRIX: Nitric Oxide Synthase, Inducible (iNOS) enzyme inhibition (substrate: L-A...
Source: ChEMBL
Target: Nitric oxide synthase, inducible
External Id: CHEMBL1909179
Name: DRUGMATRIX: Opiate mu (OP3, MOP) radioligand binding (ligand: [3H] Diprenorphine)
Source: ChEMBL
Target: Mu-type opioid receptor
External Id: CHEMBL1909182
Name: DRUGMATRIX: Opiate kappa (OP2, KOP) radioligand binding (ligand: [3H] Diprenorphine)
Source: ChEMBL
Target: Kappa-type opioid receptor
External Id: CHEMBL1909181
Name: DRUGMATRIX: Phosphodiesterase PDE3 enzyme inhibition (substrate: [3H]cAMP + cAMP)
Source: ChEMBL
Target: N/A
External Id: CHEMBL1909184
Name: DRUGMATRIX: Phorbol Ester radioligand binding (ligand: [3H] PDBu)
Source: ChEMBL
Target: N/A
External Id: CHEMBL1909183
Name: pKa (acid-base dissociation constant) as determined by Liao ref: J Chem Info Model 20...
Source: ChEMBL
Target: N/A
External Id: CHEMBL2449006
Name: DRUGMATRIX: Phosphodiesterase PDE5 enzyme inhibition (substrate: [3H]cGMP + cGMP)
Source: ChEMBL
Target: cGMP-specific 3',5'-cyclic phosphodiesterase
External Id: CHEMBL1909186
Name: DRUGMATRIX: Phosphodiesterase PDE4 enzyme inhibition (substrate: [3H]cAMP + cAMP)
Source: ChEMBL
Target: N/A
External Id: CHEMBL1909185
Name: DRUGMATRIX: Muscarinic M3 radioligand binding (ligand: [3H] N-Methylscopolamine)
Source: ChEMBL
Target: Muscarinic acetylcholine receptor M3
External Id: CHEMBL1909172
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Inoven
Lebrufen
(RS)-ibuprofen
Ibumetin
Femadon
2-(4-Isobutylphenyl)propionic acid
QVY1&R D1Y1&1
l-Ibuprofen
Para-Isobutylhydratropic Acid
Ibuprofen
(2R)-2-(4-Isobutylphenyl)propanoic acid
(R)-2-(4-Isobutylphenyl)propanoic acid
(±)-ibuprofen
Novogent N
Ibutid
fenbid
2-(4-Isobutylphenyl)propanoic acid
MOTRIN
Dolgirid
(R)-Ibuprofen
Amibufen
(-)-ibuprofen
Nurofen
(R)-(-)-Ibuprofen
Racemic ibuprofen
(2R)-2-[4-(2-methylpropyl)phenyl]propanoic acid
Advil
Brufen
Dolo-Dolgit
Seclodin
UNII:WK2XYI10QM
IbU
Panafen

 (R)-(-)-Ibuprofen | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the InChIKey of levibuprofen?
A: InChIKey of levibuprofen is HEFNNWSXXWATRW-SNVBAGLBSA-N.
Q: What is the molecular weight of levibuprofen?
A: Molecular weight of levibuprofen is 206.281.
Q: What is the LogP of levibuprofen?
A: LogP of levibuprofen is 3.72.
Q: What is the SMILES notation of levibuprofen?
A: SMILES notation of levibuprofen is CC(C)Cc1ccc(C(C)C(=O)O)cc1.
Q: What is the melting point of levibuprofen?
A: Melting point of levibuprofen is 41-42ºC.
Q: What are the uses of levibuprofen?
A: Main uses of levibuprofen: (R)-(-)-Ibuprofen is the R enantiomer of Ibuprofen, inactive on COX, inhibits NF-κB activation; (R)-(-)-Ibuprofen exhibits anti-inflammatory and antinociceptive effects.
Q: What is the CAS number of levibuprofen?
A: CAS number of levibuprofen is 51146-57-7.
Q: What are the upstream materials of levibuprofen?
A: Related upstream materials(CAS) of levibuprofen: 6448-14-2;15687-27-1;62784-66-1;110282-71-8;1187670-13-8;51407-46-6;61566-34-5;298197-67-8;2039-82-9.
Q: What is the boiling point of levibuprofen?
A: Boiling point of levibuprofen is 319.6±11.0 °C at 760 mmHg.
Q: What is the polar surface area (PSA) of levibuprofen?
A: Polar surface area (PSA) of levibuprofen is 37.30000.

 (R)-(-)-Ibuprofenfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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