Dydrogesterone Impurity 14 CAS 7488-73-5
| CAS No. | 7488-73-5 |
| Molecular Formula | C21H30O3 |
| Molecular Weight | 330.46 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 Dydrogesterone Impurity 14 (CAS 7488-73-5), a pharmacopoeial impurity reference standard (molecular formula C21H30O3, MW 330.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Dydrogesterone Impurity 14 (C21H30O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H30O3 |
| Molecular Weight | 330.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Related Dydrogesterone Standards
- Dydrogesterone Impurity 25 (CAS CATO-C4X-218325)
- Dydrogesterone-d6 (CAS CATO-C4X-21833)
- Dydrogesterone Impurity 1 (CAS 1819-14-3)
- Dydrogesterone Impurity 4 (CAS 4243-74-7)
- Dydrogesterone Impurity N3 (CAS 25093-47-4)
- Dydrogesterone Impurity 12; (CAS 17398-60-6)
- Dydrogesterone (CAS 152-62-5)
- Dydrogesterone EP Impurity C (CAS 246038-13-1)
Recommended Standards
- Tretinoin EP Impurity F (4-Methoxy Retinoic Acid) (CAS 81121-20-2)
- 17,17-(Ethylenedioxy)androst-4-en-3-one (CAS 1044-89-9)
- Testosterone EP Impurity E (CAS 1045-69-8)
- Etonogestrel Impurity 1 (CAS 947193-18-2)
- Biotin impurity 02 (CAS 87573-52-2)
- Rabeprazole impurity 48 (CAS 92288-14-7)
- Nimodipine Impurity 55 (CAS CATO-C4X-138555)
- Leu-ams (CAS 288591-93-5)
- 2-(2-Isopropylphenoxy)aniline (CAS 946682-15-1)
- 6-(tert-Butyl)-8-fluoro-2,3-dimethylquinolin-4-ol (CAS 376645-76-0)
- Dibutyl Sulfite (CAS 626-85-7)
- 1417569-31-3 4-(2-Methoxyphenyl)piperazine-1-carboximidamide sulfate MFCD22422000 (CAS 1417569-31-3)
- Oseltamivir Impurity 230 (CAS CATO-C4X-1720230)
- Neuropeptide Y, porcine (CAS 82785-45-3)
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