Formoterol impurity 112 CAS 63192-58-5
| CAS No. | 63192-58-5 |
| Molecular Formula | C14H12O4 |
| Molecular Weight | 244.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H12O4, Formoterol impurity 112 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.24 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).
Formoterol impurity 112 (CAS 63192-58-5) is a certified pharmaceutical impurity reference standard with the molecular formula C14H12O4 and a molecular weight of 244.24 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 | C14H12O4 |
| Molecular Weight | 244.24 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Formoterol Standards
- Formoterol Impurity 37 (CAS 63192-57-4)
- Formoterol Impurity N11 (CAS 51713-72-5)
- Formoterol Impurity 95 (CAS CATO-C4X-152595)
- Formoterol impound 144 (CAS 343618-74-6)
- Formoterol Impurity 55 (CAS 67346-60-5)
- Formoterol Impurity 63 (CAS 67346-59-2)
- Formoterol Impurity 96 (CAS 5029-61-8)
- Formoterol Impurity 28 (CAS 126587-86-8)
Recommended Standards
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