Dexamethasone Impurity 118 CAS CATO-C4X-1165118
| CAS No. | CATO-C4X-1165118 |
| Molecular Formula | C22H28FNa2O8P |
| Molecular Weight | 516.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Dexamethasone Impurity 118 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.
Dexamethasone Impurity 118 (CAS CATO-C4X-1165118) is a certified pharmaceutical impurity reference standard with the molecular formula C22H28FNa2O8P and a molecular weight of 516.40 g/mol.
Structurally, Dexamethasone Impurity 118 (C22H28FNa2O8P) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 516.40 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C22H28FNa2O8P |
| Molecular Weight | 516.40 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 Dexamethasone Standards
- Dexamethasone Impurity 119 (CAS CATO-C4X-1165119)
- Dexamethasone Impurity 113 (CAS CATO-C4X-1165113)
- Dexamethasone impurity 78 (CAS 1879-72-7)
- Dexamethasone Impurity 84 (CAS CATO-C4X-116584)
- Dexamethasone Impurity 87 (CAS CATO-C4X-116587)
- Dexamethasone Impurity 16 (CAS 55541-30-5)
- Dexamethasone Impurity 01 (CAS 83880-70-0)
- Dexamethasone 21-Iodide (CAS 2029-18-7)
Recommended Standards
- 3-(2,4-Dichlorobenzyl)-4-hydroxy-1-(2-methyl-2-((3-(trifluoromethyl)benzyl)thio)propyl)pyridin-2(1H)-one (CAS 672949-09-6)
- 2,6-Dibromo-4,8-bis(hexyloxy)benzo[1,2-b:4,5-b’]dithiophene (CAS 359017-65-5)
- Bis(perfluorophenyl)diphenylsilane (CAS 17067-70-8)
- Cb-30865 (CAS 206275-15-2)
- Tofacitinib Impurity 78 (CAS CATO-C4X-107978)
- Racecadotril EP Impurity H (CAS 141437-88-9)
- Valsartan Impurity 123 (CAS CATO-C4X-1057123)
- 2-(Chloromethyl)-3-(difluoromethyl)-4-hydroxypyridine-5-acetonitrile (CAS 1805093-90-6)
- (2S)-2-Methyl-5-phenylpyrrolidine (CAS 1860017-96-4)
- 7-Fluoro-1-methyl-1H-indole-3-carboxylic acid (CAS 126921-18-4)
- Enloplatin (CAS 111523-41-2)
- 3-(Aminomethyl)-5-cyclopropoxy-N-methylpicolinamide (CAS 1243471-39-7)
- tert-Butyl (4-iodo-6-methylpyridin-3-yl)carbamate (CAS 1395417-30-7)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
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