5-(4-Cyclohexylphenyl)-2-methylpyrazolo[1,5-a]pyrimidine CAS 861210-07-3
| CAS No. | 861210-07-3 |
| Molecular Formula | C19H21N3 |
| Molecular Weight | 291.39 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.
CATO supplies 5-(4-Cyclohexylphenyl)-2-methylpyrazolo[1,5-a]pyrimidine (CAS 861210-07-3), a certified reference material (molecular formula C19H21N3, MW 291.39 g/mol) for analytical method development and quality control.
The molecular framework of 5-(4-Cyclohexylphenyl)-2-methylpyrazolo[1,5-a]pyrimidine (C19H21N3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H21N3 |
| Molecular Weight | 291.39 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Cyclohexylphenyl Standards
- N-(4-Cyclohexylphenyl)-4-isopropylaniline (CAS 886365-92-0)
- Methyl 4-(4-cyclohexylphenyl)-2,4-dioxobutanoate (CAS 82760-72-3)
- 2-(4-Cyclohexylphenyl)quinoline (CAS 861039-18-1)
- 2-(4-Cyclohexylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 820223-94-7)
- 1-(4-Cyclohexylphenyl)-4,4,4-trifluorobutane-1,3-dione (CAS 866050-34-2)
- Ethyl 5-(4-cyclohexylphenyl)-1H-pyrazole-3-carboxylate (CAS 1326811-96-4)
- 3-(4-Cyclohexylphenyl)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 1177298-23-5)
- 1-(4-Cyclohexylphenyl)-2,5-dimethyl-1H-pyrrole-3-carbaldehyde (CAS 340319-28-0)
Recommended Standards
- 4-Hydroxy-4-o-tolylpiperidine-1-carboxylic acid tert-butyl ester (CAS 553630-96-9)
- 5-(Tert-butyl)-2-(o-tolyl)-1H-indole-3-carbaldehyde (CAS 590346-96-6)
- 4-[9-Methoxy-3,4,4a,5,6,10b-hexahydro-2H-pyrano[3,2-c]quinolin-5-yl]-1-butanol (CAS 910646-95-6)
- 7-[4-(N,N-Diethylamino)phenyl]-7-oxoheptanoic acid (CAS 951889-32-0)
- (3aR,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-ol (CAS 4099-88-1)
- (2R,3S,5R)-5-(2-Amino-6-chloro-9H-purin-9-yl)-2-(((4-methylbenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-methylbenzoate (CAS 35095-93-3)
- 2-Bromo-3,5-dichloroisonicotinic acid (CAS 343781-56-6)
- 2,3-Dibromo-5-methylanisole (CAS 1208074-85-4)
- (R)-2-(3-bromo-5-methoxyphenyl)piperidine (CAS 1388718-90-8)
- Cefuroxime impurity 104 (CAS CATO-C4X-1245104)
- 3-(1H-pyrazol-1-yl)piperidine (CAS 1211541-73-9)
- 2-Bromomethyl-3-methoxybenzoic acid methyl ester (CAS 71887-28-0)
- 4-Methyl-2-((4-nitrobenzyl)sulfonyl)pyrimidine (CAS 866138-24-1)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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