Ibuprofen Impurity 25 CAS 43153-04-4
| CAS No. | 43153-04-4 |
| Molecular Formula | C12H14O3 |
| Molecular Weight | 206.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ibuprofen Impurity 25 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Ibuprofen Impurity 25 (CAS 43153-04-4) is a certified pharmaceutical impurity reference standard with the molecular formula C12H14O3 and a molecular weight of 206.24 g/mol.
Based on its molecular formula C12H14O3, Ibuprofen Impurity 25 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C12H14O3 |
| Molecular Weight | 206.24 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.) | 1969 |
Related Ibuprofen Standards
- Ibuprofen Impurity (CAS 220089-22-5)
- (S)-Ibuprofen EP Impurity B (CAS 404354-76-3)
- Ibuprofen (CAS 15687-27-1)
- Ibuprofen EP Impurity A (CAS 66622-47-7)
- Ibuprofen Impurity 145 (CAS 69363-33-3)
- Ibuprofen EP Impurity A (CAS CATO-C4X-1082147)
- Ibuprofen EP Impurity O (CAS 64451-76-9)
- Ibuprofen Impurity 151 (CAS CATO-C4X-1082151)
Recommended Standards
- Posaconazole Impurity 119 (CAS 2243786-03-8)
- Vortioxetine Impurity 90 (CAS 50606-33-2)
- Posaconazole impurity 219 (CAS CATO-C4X-1208219)
- Hydroxypiperidine-2-carboxylic Acid (CAS 56879-47-1)
- Docusate Sodium Impurity 1 (CAS 96954-01-7)
- Flurbiprofen Impurity 18 (CAS 78543-06-3)
- Azithromycin EP Impurity A (CAS 76801-85-9)
- 3-(3-(Hydroxymethyl)phenyl)oxetan-3-ol (CAS 1644346-03-1)
- (3,4-Difluorophenyl)(furan-2-yl)methanol (CAS 1247705-38-9)
- Debrisoquine 8-Hydroxy Impurity (CAS 46286-45-7)
- 1,1,3,3-Tetrafluoropropene (CAS 4556-24-5)
- Ethyl 1-(5-acetyl-4-methylthiazol-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate (CAS 955964-60-0)
- (4-Cyclopropoxy-3-(methylthio)pyridin-2-yl)methanamine (CAS 1243466-99-0)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com