Otilonium Bromide Impurity 3 CAS 14629-01-7
| CAS No. | 14629-01-7 |
| Molecular Formula | C14H23N2O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Otilonium Bromide Impurity 3 (C14H23N2O2Br) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. 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 331.25 g/mol, it falls into the moderately-high-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 supplies Otilonium Bromide Impurity 3 (CAS 14629-01-7), a pharmacopoeial impurity reference standard (molecular formula C14H23N2O2Br, MW 331.25 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C14H23N2O2 Br |
| Molecular Weight | 331.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Otilonium Standards
- Otilonium Bromide Impurity 4 (CAS 1007652-84-7)
- 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 14 (CAS 49557-33-7)
- Otilonium Bromide Impurity 6 (CAS 51444-79-2)
Recommended Standards
- Pregabalin Impurity 12 (CAS 216576-74-8)
- Clethodim Impurity 21 Chloride (CAS 194805-30-6)
- Alvimopan Impurity 22 (CAS CATO-C4X-114522)
- 4-chloro-2-methyl-2H-pyrazolo[4,3-c]pyridine (CAS 41372-94-5)
- 2-Iodo-5-methoxy-1H-indole (CAS 99275-49-7)
- (R)-1,2,3,4-Tetrahydro-5-methoxy-n-propyl-2-naphthalenamine hydrochloride (CAS 93601-85-5)
- 4-Amino-5-cyclopropyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 31821-73-5)
- 4-[(4-Benzyl-2-bromophenoxy)methyl]piperidinehydrochloride (CAS 1220017-58-2)
- Chlorpheniramine Nitrile-d6 (CAS 1329488-38-1)
- [His]1+12-Semaglutide (CAS CATO-C4X-2226178)
Why CATO?
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