3-Chloro-2-methyl-6-(4-methylphenyl)pyrazolo[1,5-a]pyrimidine CAS 439107-68-3
| CAS No. | 439107-68-3 |
| Molecular Formula | C14H12ClN3 |
| Molecular Weight | 257.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-Chloro-2-methyl-6-(4-methylphenyl)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.
3-Chloro-2-methyl-6-(4-methylphenyl)pyrazolo[1,5-a]pyrimidine (CAS 439107-68-3), molecular formula C14H12ClN3 and molecular weight 257.72 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H12ClN3, 3-Chloro-2-methyl-6-(4-methylphenyl)pyrazolo[1,5-a]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 257.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C14H12ClN3 |
| Molecular Weight | 257.72 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 4-Chloro-2-(3,4-dimethylphenyl)pyrazolo[1,5-a]pyrazine (CAS 1031977-15-7)
- 5-(7-Chloro-1H-benzo[d]imidazol-2-yl)-2-methylaniline (CAS 1071373-15-3)
- 7-Chloro-2,5-dimethyl-3-phenylpyrazolo[1,5-a]pyrimidine (CAS 1144449-18-2)
- 4-Chloro-5-(3-(hydroxymethyl)piperidin-1-yl)-2-methylpyridazin-3(2h)-one (CAS 1210119-61-1)
- 6-Chloro-N2-methyl-N2-((tetrahydro-2H-pyran-4-yl)methyl)-1,3,5-triazine-2,4-diamine (CAS 1220030-57-8)
- 4-Chloro-6-(2-methylbenzyl)-7H-pyrrolo[2,3-d]pyrimidine (CAS 1234201-67-2)
- 7-Chloro-4-(3,5-dimethyl-1H-pyrazol-1-yl)quinoline (CAS 124833-68-7)
- 2-chloro-N-[1-(5-methyl-1,2,4-oxadiazol-3-yl)cyclohexyl]acetamide (CAS 1306603-90-6)
Recommended Standards
- 2-Chloro-4,8-dimethyl-6-phenylimidazo[1,5-a]pyrimidine (CAS 88875-13-2)
- 3-Chloro-2-methyl-7-(p-tolyl)pyrazolo[1,5-a]pyrimidine (CAS 439120-60-2)
- 2-Amino-4-(4-chlorophenyl)-5,6-dimethylpyridine-3-carbonitrile (CAS 333394-03-9)
- 3-Chloro-7-(pyrrolidin-1-yl)quinoline-8-carbonitrile (CAS 88347-09-5)
- 2-((2-(4-Bromophenyl)-2-oxoethyl)thio)-3-isobutylquinazolin-4(3H)-one (CAS 255865-18-0)
- 2-Amino-5-ethyl-1,4-dimethyl-1H-pyrrole-3-carbonitrile (CAS 70345-80-1)
- 4-Methoxy-2,3-dimethylpyridine (CAS 163593-69-9)
- 3-[(3-Isopropylphenoxy)methyl]piperidine (CAS 946724-78-3)
- 3-(Pyridin-4-yl)isoquinolin-1-amine (CAS 37989-05-2)
- 2-Chloro-N-ethyl-N-(thiophen-2-ylmethyl)acetamide (CAS 852706-25-3)
- 4-Chloro-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)aniline (CAS 1995072-92-8)
- (2-Nitro-1,4-phenylene)diboronic acid (CAS 28362-31-4)
- 3'-Fluoro-4'-methyl-[1,1'-biphenyl]-3-amine (CAS 1187386-07-7)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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