Budesonide Impurity 67 CAS CATO-C4X-138967
| CAS No. | CATO-C4X-138967 |
| Molecular Formula | C26H33ClO7 |
| Molecular Weight | 492.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Budesonide Impurity 67 (CAS CATO-C4X-138967, C26H33ClO7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Budesonide Impurity 67 (C26H33ClO7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 492.99 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Budesonide Impurity 67 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 | C26H33ClO7 |
| Molecular Weight | 492.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Budesonide Standards
- Budesonide impurity 43 (CAS CATO-C4X-138943)
- Budesonide Impurity 51 (CAS CATO-C4X-138951)
- Budesonide Impurity 62 (CAS CATO-C4X-138962)
- Budesonide Impurity 69 (CAS CATO-C4X-138969)
- Budesonide Impurity 78 (CAS CATO-C4X-138978)
- Budesonide Impurity 40 (CAS 91160-89-3)
- Budesonide Impurity 72 (CAS CATO-C4X-138972)
- Budesonide Impurity 53 (CAS CATO-C4X-138953)
Recommended Standards
- Empagliflozin Impurity 89 (CAS CATO-C4X-106589)
- 16-(3-(4-Chloro-3-(trifluoromethyl)phenyl)ureido)hexadecanoic acid (CAS 1611446-66-2)
- Fluorescein impurity 01 (CAS 76579-17-4)
- N-1-Ethoxyethyl Losartan Carboxaldehyde (CAS 165276-40-4)
- Benzylpenicillin Impurity 72 (CAS CATO-C4X-189972)
- Canagliflozin Impurity 69 (CAS CATO-C4X-112369)
- Lefamulinum Impurity 35 (CAS CATO-C4X-304735)
- 3-(1,3-Benzodioxol-5-ylmethyl)-pyrrolidine hydrochloride (CAS 911194-10-0)
- oct-7-en-2-one (CAS 133844-61-8)
- Montelukast Impurity 49 (CAS CATO-C4X-103149)
- 1-Methylindole-3-acetic Acid (CAS 1912-48-7)
- 1H-Azepine,hexahydro-2-(3-methoxyphenyl)- 383129-37-1 CTK4H9684 (CAS 383129-37-1)
- (3α,5β,7α,12α,24E)-3,7,12-Trihydroxy-cholest-24-en-26-oic Acid (CAS 85552-38-1)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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