Otilonium Bromide Impurity 14 CAS 49557-33-7
| CAS No. | 49557-33-7 |
| Molecular Formula | C28H41N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Otilonium Bromide Impurity 14 (CAS 49557-33-7) is a certified pharmaceutical impurity reference standard with the molecular formula C28H41N2O4Br and a molecular weight of 549.55 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Otilonium Bromide Impurity 14 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 549.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Otilonium Bromide Impurity 14 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 | C28H41N2O4 Br |
| Molecular Weight | 549.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Otilonium Standards
- Otilonium Bromide Impurity 4 (CAS 1007652-84-7)
- Otilonium Bromide Impurity 3 (CAS 14629-01-7)
- Otilonium Bromide Impurity 1 (CAS 255062-85-2)
- Otilonium Bromide Impurity 7 (CAS 26090-29-9)
- Otilonium Bromide (CAS 26095-59-0)
- Otilonium Bromide Impurity 15 (CAS 26187-16-6)
- Otilonium Bromide Impurity 9 (CAS 27830-12-2)
- Otilonium Bromide Impurity 6 (CAS 51444-79-2)
Recommended Standards
- Brexpiprazole impurity 114 (CAS 131540-81-3)
- Flibanserin Impurity 18 (CAS 60568-46-9)
- Frovatriptan Impurity 2 (CAS CATO-C4X-30772)
- Pramipexole Impurity 42 (CAS 106006-83-1)
- (2,3,4-Trichloro-5-nitrophenyl)boronic acid (CAS 1072946-38-3)
- 2-Amino-4-(difluoromethyl)-5-fluoronicotinic acid (CAS 1805940-76-4)
- Verbenene (CAS 4080-46-0)
- (S)-3-(Benzyloxy)-4-hydroxy-5-methylfuran-2(5H)-one (CAS 124400-11-9)
- MDBN (CAS 1485-00-3)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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