3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid CAS 797809-11-1
| CAS No. | 797809-11-1 |
| Molecular Formula | C11H7ClF3N3O2 |
| Molecular Weight | 305.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 305.64 g/mol gives 3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 797809-11-1), molecular formula C11H7ClF3N3O2 and molecular weight 305.64 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H7ClF3N3O2, 3-Chloro-5-cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 305.64 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H7ClF3N3O2 |
| Molecular Weight | 305.64 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, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 4-Chloro-3-nitro-1-(3-(trifluoromethyl)benzyl)-1H-pyrazole (CAS 1006441-97-9)
- 1-(4-Chloro-3-(trifluoromethyl)phenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1097050-88-8)
- 1-[2-chloro-5-(trifluoromethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1284455-23-7)
- 1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)(methyl)amino)-1H-pyrrole-2,5-dione (CAS 138949-16-3)
- 1-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)-1H-1,2,3-triazole-4-carboxamide (CAS 1823188-06-2)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-5-methoxypyrimidin-4(3H)-one (CAS 2379918-31-5)
- 3-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-2-methyl-4H-pyran-4-one (CAS 303151-77-1)
- N-{7-chloro-2H,5H-indeno[5,6-d][1,3]dioxol-5-yl}-2,2,2-trifluoroacetamide (CAS 866040-67-7)
Recommended Standards
- 5-Amino-1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1h-pyrazole-4-carboxamide (CAS 623584-48-5)
- 4-(2-Chloro-4-(trifluoromethyl)phenoxy)-2-fluoroaniline (CAS 101463-63-2)
- Methyl 2-(2-chlorophenyl)-5-(trifluoromethyl)-2H-1,2,3-triazole-4-carboxylate (CAS 1707567-21-2)
- (2,4-Dimethoxypyrimidin-5-yl)zinc pivalate (0.88 mmol/g) (CAS 1344727-30-5)
- (2-Phenylbenzo[d]oxazol-4-yl)methanamine (CAS 760111-76-0)
- 2-ethyloxane-4-carbaldehyde (CAS 115602-97-6)
- 1-(3-Chloropyridin-2-yl)-4-methylpiperazine (CAS 87394-57-8)
- 2-amino-3-(4-chloro-1H-pyrazol-1-yl)propanoic acid hydrochloride (CAS 1461705-98-5)
- 1184982-52-2 5-Benzyl(10,11,11-~2~H_3_)-10,11-dihydro-5H-dibenzo[b,f]azepin-10-ol DTXSID80661799 (CAS 1184982-52-2)
- 2-(4-Methoxyphenyl)acetophenone (CAS 24845-40-7)
- 2-(2-methanesulfonylethanesulfonyl)benzoic acid (CAS 1183920-59-3)
- 2-Methyl-3-(1H-pyrazol-3-yl)imidazo[1,2-a]pyridine (CAS 264226-27-9)
- 4-Ethyl-N-[1-(4-fluorophenyl)ethyl]cyclohexan-1-amine (CAS 1132655-07-2)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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