Umeclidinium impurity 23 CAS 622-08-2
| CAS No. | 622-08-2 |
| Molecular Formula | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Umeclidinium impurity 23 (CAS 622-08-2) is a certified pharmaceutical impurity reference standard with the molecular formula C9H12O2 and a molecular weight of 152.19 g/mol.
Structurally, Umeclidinium impurity 23 (C9H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 152.19 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).
CATO manufactures Umeclidinium impurity 23 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.
Physical & Chemical Properties
| Molecular Formula | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Umeclidinium Standards
- Umeclidinium Impurity 8 (CAS 55022-88-3)
- Umeclidinium impurity 24 (CAS 51069-26-2)
- Umeclidinium impurity 22 (CAS 17229-17-3)
- Umeclidinium Bromide Impurity 25 (CAS 119102-52-2)
- Umeclidinium Impurity 1 (CAS 1509910-91-1)
- Umeclidinium impurity 25 (CAS 22766-68-3)
- Umeclidinium Impurity 16 (CAS 939900-20-6)
- Umeclidinium impurity 26 (CAS 1248400-28-3)
Recommended Standards
- Pregabalin Impurity 66 (CAS 143420-53-5)
- Metoprolol EP Impurity B (CAS 56718-71-9)
- Piracetam Impurity 12 (CAS 7060-52-8)
- Metoprolol Impurity 23 (CAS 330976-39-1)
- Lusutrombopag Impurity 8 (CAS CATO-C4X-20848)
- Tofacitinib Impurity 173 (CAS CATO-C4X-1079173)
- Ceritinib Impurity 73 (CAS CATO-C4X-104873)
- 4-Chloropyrimidine-5-carboxylic acid (CAS 933686-33-0)
- 3-Fluoro-1,2-phenylenediamine (CAS 18645-88-0)
- Ethyl (2E)-2-cyano-3-[(4-methyl-1,3-thiazol-2-yl)amino]prop-2-enoate (CAS 871926-00-0)
- Tert-butyl 3a-phenylhexahydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate (CAS 1824232-01-0)
- 3,4-Dichloro-5-cyclopropoxypyridazine (CAS 1346698-10-9)
- Perospirone Impurity 5 (CAS CATO-C4X-24585)
- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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