8-(1H-Imidazol-1-yl)-2-methyl-3-phenyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine CAS 896838-67-8
| CAS No. | 896838-67-8 |
| Molecular Formula | C19H17N5 |
| Molecular Weight | 315.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-(1H-Imidazol-1-yl)-2-methyl-3-phenyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
8-(1H-Imidazol-1-yl)-2-methyl-3-phenyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine (CAS 896838-67-8), molecular formula C19H17N5 and molecular weight 315.37 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H17N5, 8-(1H-Imidazol-1-yl)-2-methyl-3-phenyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 315.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 8-(1H-Imidazol-1-yl)-2-methyl-3-phenyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H17N5 |
| Molecular Weight | 315.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |
Related H Standards
- 2-(2-(1H-Imidazol-2-yl)phenyl)-5-(tert-butyl)-1H-benzo[d]imidazole (CAS 824394-94-7)
- 4-((3-(1H-imidazol-1-yl)propyl)amino)-3-nitro-2H-chromen-2-one (CAS 294853-70-6)
- 2-(2-(1H-Imidazol-1-yl)ethyl)-4-(pyridin-3-yl)phthalazin-1(2H)-one (CAS 137381-31-8)
- 1-(2-(1H-imidazol-5-yl)ethyl)-3-(4-fluorobenzyl)-4-hydroxypyridin-2(1H)-one (CAS 478247-92-6)
- 1-(4-(1H-Imidazol-5-yl)piperidin-1-yl)-5-cyclohexylpentan-1-one (CAS 152241-24-2)
- 1-(3-(1H-imidazol-1-yl)propyl)-3-(2,4-dichlorophenyl)urea (CAS 866150-77-8)
- 1-(2-(1H-imidazol-1-yl)phenyl)-3-(3-chlorophenyl)urea (CAS 68008-39-9)
- 3-{2-[4-(1H-Imidazol-1-yl)phenyl]-2-oxoethyl}-2-benzofuran-1(3H)-one (CAS 477850-47-8)
Recommended Standards
- 6-Butyl-4-(4-methoxyphenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione (CAS 923114-08-3)
- 8-(Benzyloxy)-N-phenylimidazo[1,2-a]pyridin-3-amine (CAS 823806-53-7)
- 5-Methyl-N-(pyridin-4-yl)-3-(p-tolyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 902035-75-0)
- 8-Ethyl-4-methyl-6-phenyl-2H-pyrano[3,2-g]quinolin-2-one (CAS 647841-84-7)
- tert-butyl cis-6-hydroxy-1-azaspiro[3.3]heptane-1-carboxylate (CAS 1419101-19-1)
- Copeptin (rat) trifluoroacetate salt (CAS 86280-64-0)
- N1,N23-Bis(2,4-dinitrophenyl)-3,6,9,12,15,18,21-heptaoxatricosane-1,23-diamine (CAS 190792-11-1)
- 1-Methoxy-3-((2-nitrophenyl)amino)propan-2-ol (CAS 1355524-54-7)
- 3-Methyl-4,5,6,6a-tetrahydro-3aH-cyclopenta[d]isoxazole (CAS 20936-78-1)
- methyl 7-fluoro-1H-indole-4-carboxylate (CAS 588688-40-8)
- 4-(3-Methoxyphenyl)-1,3-dimethyl-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 860786-26-1)
- (2-Methanesulfonyl-1-Methyl-Ethyl)-Carbamic Acid Benzyl Ester (CAS 1341040-10-5)
- 2-(Aminomethyl)-3-(difluoromethyl)-4-hydroxypyridine (CAS 1806775-26-7)
- (Des-Gly2)-Exenatide trifluoroacetate salt (CAS 1678416-78-8)
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