5-(3,4-Dimethylphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide CAS 832737-72-1
| CAS No. | 832737-72-1 |
| Molecular Formula | C16H18F3N5O |
| Molecular Weight | 353.34 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-(3,4-Dimethylphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide (CAS 832737-72-1), a certified reference material (molecular formula C16H18F3N5O, MW 353.34 g/mol) for analytical method development and quality control.
Structurally, 5-(3,4-Dimethylphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide (C16H18F3N5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 353.34 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H18F3N5O |
| Molecular Weight | 353.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
Related Dimethylphenyl Standards
- N-(2,5-Dimethylphenyl)-4-(2-fluorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 537680-11-8)
- 2,3-Dimethylphenyl 2-phenylquinoline-4-carboxylate (CAS 355433-53-3)
- N-(2,4-dimethylphenyl)-2-((5-(m-tolyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 332358-38-0)
- 5-(3,4-Dimethylphenyl)-7-(trifluoromethyl)-pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride (CAS 848436-24-8)
- 6-((3,5-Dimethylphenyl)thio)-1-((2-hydroxyethoxy)methyl)-5-methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 137897-73-5)
- 3,5-Dimethylphenyl 5-(1,2,3-thiadiazol-4-yl)thiophene-2-sulfonate (CAS 338400-21-8)
- Benzyl 2-((2,3-dimethylphenyl)carbamoyl)pyrrolidine-1-carboxylate (CAS 250697-64-4)
- N-{1-[1-(2,6-dimethylphenyl)-1H-1,2,3,4-tetrazol-5-yl]cyclohexyl}-5-methyl-1,2-oxazol-3-amine (CAS 296898-35-6)
Recommended Standards
- 3-Methyl-1,6-diphenyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridine (CAS 428846-07-5)
- 5-(4-Isopropylphenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 827593-58-8)
- 2-[(4-Difluoromethylsulfanyl-phenylcarbamoyl)-methoxy]-benzoic acid (CAS 748776-41-2)
- 5-Amino-N-cyclohexyl-1-(3-(trifluoromethyl)phenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 951900-11-1)
- methyl 3-methoxyquinoline-6-carboxylate (CAS 1051316-27-8)
- Spiro[2.6]nonan-4-one (CAS 5743-85-1)
- 2-Amino Nevirapine (CAS 284686-15-3)
- 4-(4-Amino-2-(trifluoromethyl)phenoxy)benzenesulfonamide (CAS 1858252-06-8)
- 1-(4-Nitrophenyl)piperazin-2-one (CAS 867166-73-2)
- 1-(4-(Dimethylamino)phenyl)propan-1-one (CAS 26672-58-2)
- 6-(Difluoromethoxy)-2-(methylthio)-1H-benzo[d]imidazole (CAS 721920-39-4)
- 3-Chlorobenzene-1-sulfonyl isocyanate (CAS 68984-05-4)
- 2-Hydroxy-4,5-dimethylacetophenone (CAS 36436-65-4)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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