Formoterol Impurity 22 HCl CAS 1049695-95-5
| CAS No. | 1049695-95-5 |
| Molecular Formula | C17H21NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 291.82 g/mol gives Formoterol Impurity 22 HCl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Formoterol Impurity 22 HCl (CAS 1049695-95-5) is a certified pharmaceutical impurity reference standard with the molecular formula C17H21NOHCl and a molecular weight of 291.82 g/mol.
Structurally, Formoterol Impurity 22 HCl (C17H21NOHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 291.82 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), Formoterol Impurity 22 HCl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H21NO HCl |
| Molecular Weight | 291.82 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Formoterol Standards
- Formoterol Impurity 69 (CAS 100865-09-6)
- Formoterol-d6(Mixture of Diastereomers) (CAS 1020719-45-2)
- Formoterol Impurity 72 (CAS 108971-53-5)
- Formoterol EP Impurity B (CAS 1224588-66-2)
- Formoterol Impurity 19 (CAS 126002-14-0)
- Formoterol Impurity 28 (CAS 126587-86-8)
- Formoterol (Mixture of Diastereomers) (CAS 128954-45-0)
- Formoterol impurity 103 (CAS 1346746-81-3)
Recommended Standards
- N-Nitroso Cinacalcet Impurity 5 (CAS CATO-C4X-105976)
- Desmopressin Impurity 14 (CAS CATO-C4X-221514)
- Etoricoxib Impurity 77 (CAS CATO-C4X-108077)
- Tert-butyl ((5-bromo-6-(difluoromethoxy)pyridin-3-yl)methyl)carbamate (CAS 2231674-30-7)
- 2-(Di-tert-butylphosphino)-2'-methylbiphenyl 255837-19-5 2-(DI-T-BUTYLPHOSPHINO)-2'-METHYLBIPHENYL;2-(DI-TERT-BUTYLPHOSPHINO)-2'-METHYLBIPHENYL;2-DI-T-BUTYLPHOSPHINO-2-METHYLBIPHENYL;DI-TERT-BUTYL(2'-METHYL-[1,1'-BIPHENYL]-2-YL)PHOSPHINE;DI-TERT-BUTYL(2'-METHYLBIPHENYL-2-YL)-PHOSPHINE;PHOSPHINE, BIS(1,1-DIMETHYLETHYL)(2'-METHYL[1,1'-BIPHENYL]-2-YL)-;T-BUTYL MEPHOS;TBUMEPHOS GC10153 (CAS 255837-19-5)
- 2-Iodophenyl 4-piperidinyl ether hydrochloride (CAS 1220019-50-0)
- Ethyl 1-amino-4-methyl-1H-imidazole-5-carboxylate (CAS 865444-77-5)
- 6-Chloro-N-(pyrazin-2-yl)-[1,1':4',1''-terphenyl]-3-carboxamide (CAS 877609-28-4)
- Eperisone Impurity 50 (CAS 1160227-93-9)
- Tirzepatide Impurity 23 X TFA Salt (CAS CATO-C4X-324023)
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