Budesonide Impurity 38 CAS CATO-C4X-138938
| CAS No. | CATO-C4X-138938 |
| Molecular Formula | C21H27BrO6 |
| Molecular Weight | 455.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Budesonide Impurity 38 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.
Budesonide Impurity 38 (CAS CATO-C4X-138938) is a certified pharmaceutical impurity reference standard with the molecular formula C21H27BrO6 and a molecular weight of 455.34 g/mol.
The molecular framework of Budesonide Impurity 38 (C21H27BrO6) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C21H27BrO6 |
| Molecular Weight | 455.34 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Budesonide Standards
- Budesonide Impurity 66 (CAS CATO-C4X-138966)
- Budesonide Impurity 61 (CAS 131711-17-6)
- Budesonide Impurity 76 (CAS CATO-C4X-138976)
- 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)
Recommended Standards
- 6-(Bis(4-methoxybenzyl)amino)-3-bromo-4-methylpicolinaldehyde (CAS 2812580-22-4)
- (2R,3R,4R,5R)-2-[(4-chlorobenzoyloxy)methyl]-4-fluoro-5-hydroxy-4-methyloxolan-3-yl 4-chlorobenzoate (CAS 1294481-80-3)
- 2-(2-(2-(2-Bromo-4-(tert-butyl)phenoxy)acetyl)hydrazine-1-carbonyl)cyclohexane-1-carboxylic acid (CAS 671795-42-9)
- 1-{[6-chloro-2-(4-chlorophenyl)imidazo[1,2-a]pyridin-3-yl]methyl}-4-(2-fluorophenyl)piperazine (CAS 861212-36-4)
- Alverine Impurity 20 Iodide (CAS 879718-23-7（free base）)
- Duloxetine Impurity 15 (CAS 287737-72-8)
- Flomoxef Impurity 4 (CAS 72591-95-8)
- 1-[3-methoxy-4-(methylsulfanyl)phenyl]ethan-1-one (CAS 32467-74-6)
- 2,5-Dichloro-3-(dimethoxymethyl)pyridine (CAS 1299607-61-6)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-isobutyl-2-methylthiophen-3-yl)boronate (CAS 2223042-73-5)
- N-(2-Cyano-4,5-dimethoxyphenyl)-N-(3,4-dichlorobenzyl)thiourea (CAS 692287-53-9)
- 2,2'-Bibenzofuran (CAS 41014-29-3)
- 1-(2,3-Dichlorophenyl)-1H-imidazole (CAS 1389313-65-8)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
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