Ibuprofen Carboxylic Acid CAS 15935-54-3
| CAS No. | 15935-54-3 |
| Molecular Formula | C13H16O4 |
| Molecular Weight | 236.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Ibuprofen Carboxylic Acid (CAS 15935-54-3) is a high-purity analytical reference standard with the molecular formula C13H16O4 and a molecular weight of 236.26 g/mol.
Structurally, Ibuprofen Carboxylic Acid (C13H16O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 236.26 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C13H16O4 |
| Molecular Weight | 236.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Ibuprofen Standards
- Ibuprofen Impurity 35 (CAS 103775-30-6)
- Ibuprofen Impurity 141 (CAS 153153-85-6)
- Ibuprofen Impurity 30 (CAS 41283-72-1)
- Ibuprofen Impurity 34 (CAS CATO-C4X-1082134)
- Ibuprofen Carboxylic Acid-d3 (Mixture of Diastereomers) (CAS 1216505-29-1)
- Ibuprofen EP Impurity B Sodium (CAS CATO-C4X-108236)
- Ibuprofen Impurity 51 (CAS 43153-03-3)
- Ibuprofen Impurity 26 (CAS 67173-18-6)
Recommended Standards
- 1,5-Anhydro-4,6-O-benzylidene-3-deoxy-D-glucitol (CAS 152613-20-2)
- 8-Ethyl-2,3-dihydro-7-hydroxy-5-methoxy-2-methyl-4H-1-benzopyran-4-one (CAS 159686-25-6)
- Ethyl 5-Methoxychroman-7-carboxylate (CAS 151697-30-2)
- tert-Butyl 4-(aminomethyl)-3,3-difluoropyrrolidine-1-carboxylate (CAS 1627595-60-1)
- (4AS,8aR)-tert-Butyl 6,7-dihydroxyoctahydro-isoquinoline-2(1H)-carboxylate (CAS 1933786-51-6)
- 2-(4-Isopropylphenyl)cyclopropane-1-carboxylic acid (CAS 1048919-66-9)
- 2-Phenyl-4-(2-phenylallylidene)oxazol-5(4H)-one (CAS 675818-20-9)
- 2,2-Dichloro-1,4-dioxane (CAS 57253-41-5)
- N4,N4'-Di(pyridin-4-yl)-[1,1'-biphenyl]-4,4'-dicarboxamide (CAS 1381886-63-0)
- 3,6-Dichloro-N-(m-tolyl)benzo[b]thiophene-2-carboxamide (CAS 332156-77-1)
- 1-(2,6-Dichlorobenzyl)-6-oxo-N-propyl-1,6-dihydropyridine-3-carboxamide (CAS 339008-69-4)
- 5-Acetyl-1-((4-chlorobenzyl)oxy)pyrimidine-2,4(1H,3H)-dione (CAS 477853-64-8)
- 4-Amino-6-(4-ethylphenyl)-4,5-dihydropyridazin-3(2H)-one (CAS 1133446-27-1)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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