Budesonide Impurity 16 CAS 3044-42-6
| CAS No. | 3044-42-6 |
| Molecular Formula | C23H28O5 |
| Molecular Weight | 384.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Budesonide Impurity 16 (CAS 3044-42-6), a pharmacopoeial impurity reference standard (molecular formula C23H28O5, MW 384.47 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H28O5, Budesonide Impurity 16 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 384.47 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 manufactures Budesonide Impurity 16 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 | C23H28O5 |
| Molecular Weight | 384.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Budesonide Standards
- Budesonide Impurity 30 (CAS 1234572-34-9)
- Budesonide Impurity 79 (Z-Isomer) (CAS 118866-09-4)
- Budesonide Impurity 21 (CAS 85234-64-6)
- Budesonide Impurity N22 (CAS 82423-35-6)
- Budesonide Impurity 57 (CAS CATO-C4X-138957)
- Budesonide Impurity 34 (CAS 1171-81-9)
- Budesonide Impurity 81 (CAS CATO-C4X-138981)
- Budesonide EP Impurity A (CAS 13951-70-7)
Recommended Standards
- Spironolactone Impurity 18 (CAS CATO-C4X-134518)
- Spironolactone Impurity 15 (CAS CATO-C4X-134515)
- Bisoprolol Impurity 65 (CAS CATO-C4X-124765)
- Desvenlafaxine Impurity 5 (CAS CATO-C4X-16105)
- Tizanidine Impurity 66 (CAS 67357-53-3)
- Molnupiravir Impurity 16 (CAS CATO-C4X-249016)
- Glipizide Impurity 23 (CAS 41472-49-5)
- N,N,N-Trimethyl-1-(octyloxy)-1-oxodecan-2-aminium bromide (CAS 27587-44-6)
- 2-(Bromomethyl)-2-(4-chlorophenyl)-5,5-dimethyltetrahydrofuran (CAS 89058-38-8)
- 2,3-Diphenylquinoxaline-6,7-dicarbonitrile (CAS 361980-89-4)
- 1-(2-(2-(2-Chloropyridin-4-yl)ethyl)piperidin-1-yl)ethan-1-one (CAS 1316221-46-1)
- N-(2-Hydroxyethyl)-3,3-diphenylpropanamide (CAS 23917-33-1)
- (1S)-1-(2-bromo-4-methoxyphenyl)ethan-1-ol (CAS 1432670-74-0)
- Polymyxin B nonapeptide (CAS 86408-36-8)
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