8-Chloro-2-(m-tolyl)-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine CAS 889939-52-0
| CAS No. | 889939-52-0 |
| Molecular Formula | C16H14ClN3 |
| Molecular Weight | 283.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 8-Chloro-2-(m-tolyl)-6,7-dihydro-5H-cyclopenta[d]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.
CATO supplies 8-Chloro-2-(m-tolyl)-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine (CAS 889939-52-0), a certified reference material (molecular formula C16H14ClN3, MW 283.76 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H14ClN3, 8-Chloro-2-(m-tolyl)-6,7-dihydro-5H-cyclopenta[d]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 283.76 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.
Physical & Chemical Properties
| Molecular Formula | C16H14ClN3 |
| Molecular Weight | 283.76 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 3-Chloro-4,5-bis(2-methylphenyl)-4h-1,2,4-triazole (CAS 1087784-52-8)
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- 2-Chloro-n-(1-phenylethyl)quinazolin-4-amine (CAS 597545-50-1)
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Recommended Standards
- 7-Chloro-N-(4-methylbenzyl)quinazolin-4-amine (CAS 477861-84-0)
- Desoxochlordiazepoxide (CAS 4393-72-0)
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- N-(4-Chloro-6-(cyclopentylamino)-1,3,5-triazin-2-yl)-N-ethylacetamide (CAS 84712-79-8)
- 2-(Bromomethyl)benzenemethanol 2-(Bromomethyl)benzyl alcohol 2-Hydroxymethylbenzylbromide 74785-02-7 (CAS 74785-02-7)
- 2-(3-(Trifluoromethyl)phenoxy)acetimidamide hydrochloride (CAS 1186195-33-4)
- 4-Oxo-6-((pyrimidin-2-ylthio)methyl)-4H-pyran-3-yl 4-(tert-butyl)benzoate (CAS 877635-40-0)
- Tramadol Impurity 18 (CAS 22204-88-2)
- 2-(1,3-Dimethyl-1H-pyrazol-5-yl)acetic acid (CAS 196717-12-1)
- 3,7-Difluoro-2-Nitro-9H-Fluorene (CAS 2795-55-3)
- 2-Fluoro-4-(trifluoromethyl)pyridine-3-acetonitrile (CAS 1227511-79-6)
- 2-((1-(4-(Trifluoromethoxy)phenyl)-1H-pyrrol-2-yl)methylene)malononitrile (CAS 260788-89-4)
- n-(4-Methylthiazol-2-yl)-6-oxopiperidine-3-carboxamide (CAS 1222966-22-4)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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