Ibuprofen Impurity F is the impurity of Ibuprofen. Ibuprofen is an inhibitor (blocker/antagonist) of COX-1 and COX-2, with IC50s of 13 μM and 370 μM respectively, and exhibits anti-inflammatory effect.

Physicochemical Properties

Molecular Formula	C13H18O2
Molecular Weight	206.28
Exact Mass	206.131
CAS #	65322-85-2
PubChem CID	9834277
Appearance	Typically exists as solid at room temperature
Density	1.034 g/cm3
Boiling Point	327.445ºC at 760 mmHg
Flash Point	224.48ºC
LogP	2.902
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	5
Heavy Atom Count	15
Complexity	191
Defined Atom Stereocenter Count	0
SMILES	O([H])C(C([H])([H])C([H])([H])C1C([H])=C([H])C(=C([H])C=1[H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])[H])=O
InChi Key	DYNVRFFVBZVRND-UHFFFAOYSA-N
InChi Code	InChI=1S/C13H18O2/c1-10(2)9-12-5-3-11(4-6-12)7-8-13(14)15/h3-6,10H,7-9H2,1-2H3,(H,14,15)
Chemical Name	3-[4-(2-methylpropyl)phenyl]propanoic acid
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References

[1]. Noreen Y, et al. Development of a radiochemical cyclooxygenase-1 and -2 in vitro assay for identification of natural products as inhibitors of prostaglandin biosynthesis. J Nat Prod. 1998 Jan;61(1):2-7.

Solubility Data

Solubility (In Vitro)

DMSO: 100 mg/mL (484.78 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (12.12 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (12.12 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (12.12 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	4.8478 mL	24.2389 mL	48.4778 mL
	5 mM	0.9696 mL	4.8478 mL	9.6956 mL
	10 mM	0.4848 mL	2.4239 mL	4.8478 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.