Betamethasone Impurity N1 CAS 910-99-6
| CAS No. | 910-99-6 |
| Molecular Formula | C24H30O5 |
| Molecular Weight | 398.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C24H30O5, Betamethasone Impurity N1 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 398.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Betamethasone Impurity N1 (CAS 910-99-6), a pharmacopoeial impurity reference standard (molecular formula C24H30O5, MW 398.49 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C24H30O5 |
| Molecular Weight | 398.49 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 Betamethasone Standards
- Betamethasone Impurity 112 (CAS CATO-C4X-1437112)
- Betamethasone Impurity 121 (CAS CATO-C4X-1437121)
- Betamethasone Impurity 122 (CAS CATO-C4X-1437122)
- Betamethasone Impurity 89 (CAS CATO-C4X-143789)
- Betamethasone-d5 (CAS CATO-CCAD301382)
- Betamethasone Impurity 86 (CAS 560-34-9)
- Betamethasone Impurity 136 (CAS CATO-C4X-1437136)
- Betamethasone Impurity 38 (CAS 25121-04-4)
Recommended Standards
- Tolterodine Impurity 10 (CAS 894773-86-5)
- Dexamethasone EP Impurity H (CAS 10106-41-9)
- NSC 521542 (CAS 4724-56-5)
- Perindopril Impurity 106 (CAS CATO-C4X-1252106)
- Mirabegron Impurity 147 (CAS 1310279-36-7)
- Butylhydroxyanisole Impurity 3 (CAS CATO-C4X-15703)
- Relugolix Impurity 39 (CAS 2814571-33-8)
- N-[5-[2-(5-Chloro-2-methoxy-anilino)thiazol-4-yl]-4-methyl-thiazol-2-yl]benzamide (CAS 421580-53-2)
- N-[3-(Dimethylamino)Propyl]-1,1,2,2,3,3,4,4,5,5,5-Undecafluoropentane-1-Sulphonamide (CAS 68555-78-2)
- (2E)-1-Phenyl-3-(6-quinoxalinyl)-2-propen-1-one (CAS 1357063-34-3)
- (9H-Fluoren-9-yl)methyl (3-hydroxycyclobutyl)carbamate (CAS 1484306-86-6)
- 1-(3,5-Difluoro-4-(hexyloxy)phenyl)-2,2,2-trifluoroethanone (CAS 1443305-28-9)
- 7-(Hydroxymethyl)-3-methyl-7,8-dihydrocinnolin-5(6H)-one (CAS 924898-04-4)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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