Tadalafil Impurity N27 CAS 21753-16-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 21753-16-2 |
| Molecular Formula | C12H11N3O2 |
| Molecular Weight | 229.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tadalafil Impurity N27 (CAS 21753-16-2) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C12H11N3O2. Molecular weight: 229.24 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H11N3O2 |
| Molecular Weight | 229.24 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.) | 1963 |
| Nitrogen Atoms | 3 |
Related Tadalafil Standards
- Tadalafil Impurity 117 (CAS CATO-C4X-1087117)
- Tadalafil Impurity 119 (CAS CATO-C4X-1087119)
- Tadalafil Impurity 164 (CAS 58979-02-5)
- Tadalafil Impurity 85 (CAS 7479-05-2)
- Tadalafil Impurity 113 (CAS 68807-89-6)
- Tadalafil Impurity 29 (CAS CATO-C4X-1087129)
- Tadalafil Impurity 161 (CAS CATO-C4X-1087161)
- Tadalafil Impurity 36 (CAS 4299-70-1)
Recommended Standards
- 2-[3-(Trifluoromethyl)phenyl]piperidine 2104AE 383128-75-4 C12H14F3N (CAS 383128-75-4)
- Methyl 3-(sulfamoylmethyl)benzoate (CAS 1001404-12-1)
- N-(4-Amino-1,3,5-triazin-2-yl)-4-methylbenzamide (CAS 806635-24-5)
- Diclofenac impurity 8 (CAS CATO-C4X-16148)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
- 3-Ethynyl-1,2,4,5-tetrafluorobenzene (CAS 69442-35-9)
- 4-Fluoropyrimidine-2-methanol (CAS 1806542-06-2)
- 223127-49-9 4-(5-Nitro-2-pyridinyl)benzenecarboxylic acid MFCD05864816 (CAS 223127-49-9)
- Methyl 3-amino-4-bromo-1-methyl-1H-pyrazole-5-carboxylate (CAS 1368146-64-8)
- Semaglutide (CAS 910463-68-2)
Why CATO?
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