Vardenafil Impurity 21 CAS 927690-90-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 927690-90-2 |
| Molecular Formula | C17H22N4O3 |
| Molecular Weight | 330.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Vardenafil Impurity 21 (CAS 927690-90-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H22N4O3. Molecular weight: 330.38 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H22N4O3 |
| Molecular Weight | 330.38 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
Related Vardenafil Standards
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- Vardenafil Impurity 46 (CAS 1417529-59-9)
- Vardenafil Impurity 24 (CAS 910554-77-7)
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- Vardenafil Impurity 39 (CAS 2580939-41-7)
Recommended Standards
- 84573-33-1 Quinocarcin 3,6-Imino-1H-2-oxa-11c-azanaphth(1,2,3-cd)azulene-5-carboxylic acid, 2a,3,4,5,6,6a,7,11b-octahydro-11-methoxy-12-methyl-, (2a-alpha,3-alpha,5-alpha,6-alpha,6a-alpha,11b-alpha)-, (-)- Antibiotic DC 52 DC 52 (CAS 84573-33-1)
- Z-Pro-prolinal (CAS 88795-32-8)
- Tofacitinib Impurity 17 (CAS 1675248-19-7)
- Fulvestrant impurity 35 (CAS CATO-C4X-191735)
- Venetoclax Impurity 133 (CAS CATO-C4X-2495133)
- Picosulfate Impurity 8 (CAS 2379878-05-2)
- 1-(4-Fluorophenyl)-2-(oxolan-2-yl)ethan-1-one (CAS 1166996-25-3)
- 2-Boc-hexahydro-1H-isoindol-4(2H)-one (CAS 879687-92-0)
- Ethyl 2,4-diphenyl-6-(pyrrolidin-1-yl)pyrimidine-5-carboxylate (CAS 823795-22-8)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
Why CATO?
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