Salbutamol Intermediate Impurity 55 CAS 62932-94-9
| CAS No. | 62932-94-9 |
| Molecular Formula | C9H9BrO3 |
| Molecular Weight | 245.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Salbutamol Intermediate Impurity 55.
Salbutamol Intermediate Impurity 55 (CAS 62932-94-9) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9BrO3 and a molecular weight of 245.07 g/mol.
Structurally, Salbutamol Intermediate Impurity 55 (C9H9BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 245.07 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Salbutamol Intermediate Impurity 55 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 | C9H9BrO3 |
| Molecular Weight | 245.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
Related Salbutamol Standards
- Salbutamol Impurity 134 (CAS 115787-50-3)
- Salbutamol Impurity 143 (CAS 2262385-78-2)
- Salbutamol Impurity 146 (CAS 124658-76-0)
- Salbutamol Impurity 149 (CAS CATO-C4X-1176149)
- Salbutamol Impurity 150 (CAS CATO-C4X-1176150)
- Salbutamol Impurity 151 (CAS CATO-C4X-1176151)
- Salbutamol-d3 (CAS 1219798-60-3)
- Salbutamol Impurity 209 (CAS CATO-C4X-1176209)
Recommended Standards
- 5-Bromo-2-methoxyphenylacetic acid (CAS 7017-48-3)
- Crisaborole Impurity 64 (CAS 1160182-44-4)
- 6-Bromoveratraldehyde (CAS 5392-10-9)
- Crisaborole lmpurity 78 (CAS 2251695-12-0)
- Etoricoxib Impurity 84 (CAS CATO-C4X-108084)
- Cholecalciferol EP Impurity E (CAS 17592-07-3)
- Sepiapterin Impurity 11 (CAS 1177884-36-4)
- Methyl 4-Methyl-3,5-Dimethoxybenzoate (CAS 60441-79-4)
- 1-(Adamantan-1-yl)-1H-imidazole (CAS 69380-11-6)
- (R)-2-Amino-1-morpholinopropan-1-one (CAS 1309011-38-8)
- Methylprednisolone Acetate EP Impurity C (CAS 58636-50-3)
- 4-Pivaloyl-4H-1,2,4-triazole-3-carboxamide (CAS 62735-37-9)
- 3-Amino-4-fluorobenzo[b]thiophene-2-carboxylic acid (CAS 874800-63-2)
- Peptide Impurity 26 (CAS 1350456-66-4)
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