Budesonide Impurity 76 CAS CATO-C4X-138976
| CAS No. | CATO-C4X-138976 |
| Molecular Formula | C25H34O7 |
| Molecular Weight | 446.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C25H34O7, Budesonide Impurity 76 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 446.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Budesonide Impurity 76 (CAS CATO-C4X-138976), a pharmacopoeial impurity reference standard (molecular formula C25H34O7, MW 446.53 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.
As a certified reference material (CRM), Budesonide Impurity 76 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 | C25H34O7 |
| Molecular Weight | 446.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Budesonide Standards
- Budesonide EP Impurity I (CAS 113930-13-5)
- Budesonide 17,21-Diacetyloxy Impurity (CAS 17652-24-3)
- Budesonide Impurity 22(Mixture of Diastereomers) (CAS CATO-C4X-138922)
- Budesonide impurity 45 (CAS 3517-49-5)
- Budesonide Impurity 37 (CAS 95943-95-6)
- Budesonide Impurity 66 (CAS CATO-C4X-138966)
- Budesonide-d8 (Mixture of Diastereomers) (CAS 1105542-94-6)
- Budesonide Impurity 38 (CAS CATO-C4X-138938)
Recommended Standards
- 6α-Hydroxy Budesonide (CAS 577777-51-6)
- 6β-Hydroxy Budesonide (CAS 88411-77-2)
- Prednisolone Impurity 30 (CAS 3517-48-4)
- Canagliflozin Impurity 66 (CAS CATO-C4X-112366)
- Omadacycline Impurity 34 (CAS CATO-C4X-285734)
- Ketoconazole Impurity 17 (CAS 67914-60-7)
- Niraparib Impurity 10 (CAS 2091464-38-7)
- 6-(4-Chlorophenyl)-1-[(3-fluorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 339109-82-9)
- 2-[(diphenyl-4H-1,2,4-triazol-3-yl)sulfanyl]acetic acid (CAS 54559-45-4)
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- 2-(6-Amino-5-bromo-4-(difluoromethyl)pyridin-2-yl)acetic acid (CAS 1805054-97-0)
- Methyl 2-((1-methylpiperidin-4-yl)methyl)-3-oxobutanoate (CAS 874583-39-8)
- (R)-2-(1-Aminoethyl)-6-(trifluoromethyl)pyridin-4-amine (CAS 2641906-29-6)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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