Vinpocetine Impurity 16 CAS 38990-17-9
| CAS No. | 38990-17-9 |
| Molecular Formula | C21H26N2O3 |
| Molecular Weight | 354.44 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 Vinpocetine Impurity 16 (CAS 38990-17-9), a pharmacopoeial impurity reference standard (molecular formula C21H26N2O3, MW 354.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Vinpocetine Impurity 16 (C21H26N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 354.44 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H26N2O3 |
| Molecular Weight | 354.44 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
Related Vinpocetine Standards
- Vinpocetine Impurity 17 (CAS 83508-82-1)
- Vinpocetine Impurity 18 (CAS 18374-18-0)
- Vinpocetine Impurity 20 (CAS 38990-16-8)
- Vinpocetine EP Impurity D (CAS 57517-54-1)
- Vinpocetine Impurity 41 (CAS 22149-28-6)
- Vinpocetine (CAS 42971-09-5)
- Vinpocetine Impurity 1 (CAS 77549-94-1)
- Vinpocetine Impurity 3 (CAS 85647-43-4)
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Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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