Budesonide Impurity 40 CAS 91160-89-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 91160-89-3 |
| Molecular Formula | C23H29BrO7 |
| Molecular Weight | 497.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Budesonide Impurity 40 (CAS 91160-89-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C23H29BrO7. Molecular weight: 497.38 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C23H29BrO7 |
| Molecular Weight | 497.38 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Br-containing |
Related Budesonide Standards
- Budesonide Impurity 72 (CAS CATO-C4X-138972)
- Budesonide Impurity 53 (CAS CATO-C4X-138953)
- Budesonide Impurity 71 (CAS 91160-87-1)
- 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 28 (Mixture of Diastereomers) (CAS 2408495-96-3)
Recommended Standards
- AVE-1625 (CAS 358970-97-5)
- Methyl 4'-((2-((tert-butoxycarbonyl)amino)ethyl)carbamoyl)-6,6'-bis(chloromethyl)-[2,2'-bipyridine]-4-carboxylate (CAS 1956367-06-8)
- (6α,11β,16α)-21-(Acetyloxy)-9-bromo-6-fluoro-11-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione (CAS 54604-73-8)
- Milnacipran Impurity 41 HCl (Mixture of Enantiomers) (CAS CATO-C4X-103341)
- Tenofovir disoproxil Impurity 21 (CAS 1244022-55-6)
- Ipragliflozin Impurity 8 (CAS 1034305-23-1)
- (1R,4S)-4-(Benzyloxy)cyclopent-2-en-1-ol (CAS 150338-78-6)
- 4-(Furan-2-yl)-6-(3-methylthiophen-2-yl)pyrimidin-2-amine (CAS 1354934-92-1)
- 1-(2,6-Dicyclopropylpyrimidin-4-yl)piperidine-3-carboxylic acid (CAS 1708428-25-4)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
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