Dobutamine Impurity 9 CAS CATO-C4X-12989
| CAS No. | CATO-C4X-12989 |
| Molecular Formula | C17H20O4S |
| Molecular Weight | 320.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Dobutamine Impurity 9 (CAS CATO-C4X-12989), a pharmacopoeial impurity reference standard (molecular formula C17H20O4S, MW 320.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C17H20O4S, Dobutamine Impurity 9 contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 320.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C17H20O4S |
| Molecular Weight | 320.40 g/mol |
| Purity | >90% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Dobutamine Standards
- Dobutamine Impurity 32 (CAS CATO-C4X-129832)
- Dobutamine Impurity 33 (CAS CATO-C4X-129833)
- Dobutamine Impurity 42 (CAS CATO-C4X-129842)
- Dobutamine Impurity 51 (CAS CATO-C4X-129851)
- Dobutamine Impurity 14 (CAS 61413-41-0)
- Dobutamine Impurity 15 (CAS 334947-74-9)
- Dobutamine Impurity 19 (CAS CATO-C4X-129819)
- Dobutamine Impurity 49 (CAS CATO-C4X-129849)
Recommended Standards
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- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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