Dexamethasone impurity 70 CAS CATO-C4X-116570
| CAS No. | CATO-C4X-116570 |
| Molecular Formula | C22H28O5 |
| Molecular Weight | 372.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 372.45 g/mol gives Dexamethasone impurity 70 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Dexamethasone impurity 70 (CAS CATO-C4X-116570, C22H28O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Dexamethasone impurity 70 (C22H28O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Dexamethasone impurity 70 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 | C22H28O5 |
| Molecular Weight | 372.45 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Dexamethasone Standards
- Dexamethasone EP Impurity J (CAS 2036-77-3)
- Dexamethasone EP Impurity D (CAS 24916-90-3)
- Dexamethasone EP Impurity I (CAS 14622-47-0)
- Dexamethasone impurity 91 (CAS CATO-C4X-116591)
- Dexamethasone Oxetanone (CAS 4089-36-5)
- Dexamethasone Impurity 104 (CAS 62800-49-1)
- Dexamethasone Impurity 120 (CAS CATO-C4X-1165120)
- Dexamethasone Impurity 23 (CAS 59860-99-0)
Recommended Standards
- Lubiprostone Impurity 44 (CAS CATO-C4X-113644)
- Bisoprolol Impurity 89 (CAS 2417155-12-3)
- Lubiprostone Impurity 42 (CAS CATO-C4X-113642)
- Betamethasone EP Impurity E (CAS 981-34-0)
- Ibrutinib Impurity 102 (CAS CATO-C4X-1064102)
- Letermovir Impurity 30 (CAS CATO-C4X-291530)
- Travoprost Impurity 17 (CAS 208114-58-3)
- (Z)-3-Chloro-N'-hydroxybenzimidamide (CAS 1319746-47-8)
- 3-(3-Bromo-2-methylbenzenesulfonyl)-2-chloro-4,6-dimethylpyridine (CAS 338956-84-6)
- 6-Methyl-2-(pyridin-4-yl)pyrimidin-4-amine (CAS 61310-35-8)
- S-(2-(3-((2R)-4-(((((((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)(hydroxy)phosphoryl)oxy)-2-hydroxy-3,3-dimethylbutanamido)propanamido)ethyl) 2-methylbutanethioate (CAS 6712-02-3)
- 3-(Oxazol-4-yl)benzonitrile (CAS 620971-49-5)
- (E)-5-(3-(Pyrrolidin-2-yl)prop-1-en-1-yl)isoxazole (CAS 651314-71-5)
- [a-Glu](Side chain transposition)- Semaglutide (CAS CATO-C4X-2226111)
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