4-{3-chloro-5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-yl}-1-methyl-5-(trifluoromethyl)-1H-pyrazole CAS 956370-70-0
| CAS No. | 956370-70-0 |
| Molecular Formula | C13H11ClF3N5 |
| Molecular Weight | 329.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-{3-chloro-5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-yl}-1-methyl-5-(trifluoromethyl)-1H-pyrazole (CAS 956370-70-0) is a high-purity analytical reference standard with the molecular formula C13H11ClF3N5 and a molecular weight of 329.71 g/mol.
Based on its molecular formula C13H11ClF3N5, 4-{3-chloro-5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-yl}-1-methyl-5-(trifluoromethyl)-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 329.71 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.
As a certified reference material (CRM), 4-{3-chloro-5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-yl}-1-methyl-5-(trifluoromethyl)-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H11ClF3N5 |
| Molecular Weight | 329.71 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.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
Related chloro Standards
- 6-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-amine (CAS 338979-12-7)
- 2-[2-Chloro-5-(trifluoromethyl)pyridin-4-ylamino]-N-methylbenzamide (CAS 1061358-71-1)
- Ethyl 2-chloro-6-(4-trifluorophenyl)nicotinate (CAS 1261802-95-2)
- 4-(6-Chloro-4-trifluoromethyl-pyridin-2-yl)-benzoic acid ethyl ester (CAS 1311278-42-8)
- N'-(6-chloro-4-(trifluoromethyl)pyridin-2-yl)-N'-methylbenzohydrazide (CAS 1431555-17-7)
- N-[6-Chloro-4-(trifluoromethyl)pyridin-2-yl]-2-methylbenzohydrazide (CAS 1795304-95-8)
- 2-(4-Chloro-2-methylphenoxy)-2,2-difluoro-N-(4-fluorophenyl)acetamide (CAS 339011-04-0)
- 2-[3-Chloro-5-(trifluoromethyl)-2-pyridyl]-3-phenylpropanoic acid (CAS 1987008-07-0)
Recommended Standards
- (E)-N'-{5-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]pyrimidin-2-yl}-N,N-dimethylmethanimidamide (CAS 339010-68-3)
- 4-(Benzylideneamino)-7-chloro-6-fluorocinnoline-3-carboxylic acid (CAS 159831-77-3)
- Bis(triisopropylsilyl)amine (CAS 923027-92-3)
- Rac Methyl Efavirenz (Mixture of Diastereomers) (CAS CATO-C4X-162723)
- 3-(5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl)aniline (CAS 152071-47-1)
- 5,7-difluoro-1-methyl-1H-1,3-benzodiazole (CAS 1539651-36-9)
- 3-(Dimethylamino)-3-phenylpropanoic acid (CAS 6098-50-6)
- N-(3-Methoxyphenyl)-2-methylbenzamide (CAS 55814-35-2)
- 1-(Benzo[d][1,3]dioxol-5-yl)-N-(pyridin-3-ylmethyl)methanamine (CAS 328261-31-0)
- L-Buthionine Sulfoxide (CAS 199982-01-9)
- 6-Chloro-4-cyclopropoxypyridin-3-amine (CAS 1243470-66-7)
- Methyl 3-oxo-3-(5-oxo-1-(m-tolyl)pyrrolidin-3-yl)propanoate (CAS 1229627-23-9)
- 1-{4-[(4-tert-Butylphenyl)carbonyl]-1H-pyrrol-2-yl}-2,2,2-trichloroethan-1-one (CAS 1797764-96-5)
- Tau Peptide (74-102) (Exon 3/Insert 2 Domain) trifluoroacetate salt (CAS 1322695-34-0)
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