3-Chloro-2-methyl-7-(naphthalen-2-yl)pyrazolo[1,5-a]pyrimidine CAS 439095-85-9
| CAS No. | 439095-85-9 |
| Molecular Formula | C17H12ClN3 |
| Molecular Weight | 293.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Chloro-2-methyl-7-(naphthalen-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 439095-85-9) is a high-purity analytical reference standard with the molecular formula C17H12ClN3 and a molecular weight of 293.75 g/mol.
Structurally, 3-Chloro-2-methyl-7-(naphthalen-2-yl)pyrazolo[1,5-a]pyrimidine (C17H12ClN3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 293.75 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 3-Chloro-2-methyl-7-(naphthalen-2-yl)pyrazolo[1,5-a]pyrimidine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H12ClN3 |
| Molecular Weight | 293.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 3,5-Dibromo-4-methylphenylboronic acid (CAS 2241870-51-7)
- 3-Chloro-n-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)propanamide (CAS 19854-82-1)
- 3-(4-Chlorobenzyl)tetrahydropyrazolo[1,2-a][1,2,5]triazepine-1,5(2H,7H)-dione (CAS 86126-25-2)
- 4-((5-Chloroquinolin-8-yl)oxy)butyl acetate (CAS 4337-16-0)
- 1-((2,5-Dimethylphenoxy)methyl)-1h-pyrazole-3-carbohydrazide (CAS 1004194-14-2)
- 2-(4-(Hydroxymethyl)phenoxy)propanoic acid (CAS 77391-08-3)
- 1-Phenyl-2-(thiophen-2-yl)ethan-1-ol (CAS 58255-22-4)
- Saikosaponin B1 (CAS 58558-08-0)
- 4-Morpholinomethylaniline, 97% (CAS 51013-67-3)
- N-(2-(5-Methoxy-1H-indol-3-yl)ethyl)formamide (CAS 104510-12-5)
- n-((1h-Benzo[d]imidazol-2-yl)methyl)-N-methylcyclohexanecarboxamide (CAS 1223396-53-9)
- 3-((Difluoromethyl)thio)benzoic acid (CAS 4837-24-5)
- 1-(2,6-Diisopropylphenyl)-3-((1R,2S)-1-hydroxy-2,3-dihydro-1H-inden-2-yl)-4,5-dihydro-1H-imidazol-3-ium hexafluorophosphate(V) (CAS 2248771-43-7)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com