Pranoprofen Impurity 25 CAS CATO-C4X-181125
| CAS No. | CATO-C4X-181125 |
| Molecular Formula | C15H11NO3 |
| Molecular Weight | 253.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C15H11NO3, Pranoprofen Impurity 25 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.25 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).
Pranoprofen Impurity 25 (CAS CATO-C4X-181125) is a certified pharmaceutical impurity reference standard with the molecular formula C15H11NO3 and a molecular weight of 253.25 g/mol.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C15H11NO3 |
| Molecular Weight | 253.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Pranoprofen Standards
- Pranoprofen Impurity 55 (CAS 56708-14-6)
- Pranoprofen (CAS 52549-17-4)
- Pranoprofen Impurity 34 (CAS 2688845-71-6)
- Pranoprofen Impurity 44 (CAS CATO-C4X-181144)
- Pranoprofen Impurity 67 (CAS CATO-C4X-181167)
- Pranoprofen Impurity 42 (CAS CATO-C4X-181142)
- Pranoprofen Impurity 49 (CAS 1254691-84-3)
- Pranoprofen Impurity 54 (CAS CATO-C4X-181154)
Recommended Standards
- Ketorolac impurity 74 (CAS CATO-C4X-166974)
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- Butalbital Impurity 8 (CAS CATO-C4X-19838)
- Pinaverium impurity 31 (CAS CATO-C4X-246731)
- Topiramate Impurity 41 (CAS CATO-C4X-176841)
- Loratadine Impurity 93 (CAS CATO-C4X-142693)
- Montelukast Impurity N3 (CAS 880769-28-8)
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- n-(2-Methyl-2-morpholinopropyl)cyclopropanecarboxamide (CAS 1208794-61-9)
- 4-Bromo-N-(2-fluorobenzyl)aniline (CAS 1019545-94-8)
- 4H,5H,6H,7H-pyrazolo[1,5-a]pyridine-3-carboxylic acid (CAS 307307-97-7)
- Lumateperone Impurity 74 Tosylate (CAS CATO-C4X-220174)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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