Betamethasone impurity 63 CAS CATO-C4X-143763
| CAS No. | CATO-C4X-143763 |
| Molecular Formula | C22H28FO8P |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Betamethasone impurity 63 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.
Betamethasone impurity 63 (CAS CATO-C4X-143763) is a certified pharmaceutical impurity reference standard with the molecular formula C22H28FO8PNa and a molecular weight of 493.42 g/mol.
Owing to a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution, Betamethasone impurity 63 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 493.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C22H28FO8P 2*Na |
| Molecular Weight | 493.42 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Betamethasone Standards
- Betamethasone Cyclic 17,21-(Ethyl Orthopropionate) (CAS 1062-09-5)
- Betamethasone impurity 91 (CAS 114488-14-1)
- Betamethasone impurity 97 (CAS 1150311-95-7)
- Betamethasone Impurity N22 (CAS 116522-68-0)
- Betamethasone Impurity 27 (CAS 116846-77-6)
- Betamethasone impurity 51 (CAS 1184871-61-1)
- Betamethasone Dipropionate EP Impurity G (CAS 1186048-33-8)
- Betamethasone Dipropionate impurity 02 (CAS 1186048-34-9)
Recommended Standards
- Norepinephrine Impurity 66 HCl (CAS 62-22-6)
- Posaconazole Impurity 23(S,R,S,R) (CAS 213381-04-5)
- Etodolac EP Impurity E (CAS 57817-27-3)
- N-Benzhydryl-2-chloroacetamide (CAS 10254-07-6)
- tert-butyldimethylsilyl 2-[(tert-butyldimethylsilyl)oxy]acetate (CAS 67226-76-0)
- 6-(Tert-butyl)spiro[2.5]octan-1-amine (CAS 1248798-85-7)
- sodium 2-(4-ethyl-1,3-thiazol-2-yl)acetate (CAS 1354959-53-7)
- (4,5,6,7-Tetrahydro-1h-benzo[d]imidazol-2-yl)methanamine (CAS 933693-79-9)
- Homodihydrocapsaicin I (CAS 20279-06-5)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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