4-[3-Chloro-7-(chlorodifluoromethyl)-5-methylpyrazolo[1,5-a]pyrimidin-2-yl]-1-methyl-5-(trifluoromethyl)-1H-pyrazole CAS 956781-26-3
| CAS No. | 956781-26-3 |
| Molecular Formula | C13H8Cl2F5N5 |
| Molecular Weight | 400.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 400.13 g/mol gives 4-[3-Chloro-7-(chlorodifluoromethyl)-5-methylpyrazolo[1,5-a]pyrimidin-2-yl]-1-methyl-5-(trifluoromethyl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-[3-Chloro-7-(chlorodifluoromethyl)-5-methylpyrazolo[1,5-a]pyrimidin-2-yl]-1-methyl-5-(trifluoromethyl)-1H-pyrazole (CAS 956781-26-3), molecular formula C13H8Cl2F5N5 and molecular weight 400.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution, 4-[3-Chloro-7-(chlorodifluoromethyl)-5-methylpyrazolo[1,5-a]pyrimidin-2-yl]-1-methyl-5-(trifluoromethyl)-1H-pyrazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 400.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures 4-[3-Chloro-7-(chlorodifluoromethyl)-5-methylpyrazolo[1,5-a]pyrimidin-2-yl]-1-methyl-5-(trifluoromethyl)-1H-pyrazole 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.
Physical & Chemical Properties
| Molecular Formula | C13H8Cl2F5N5 |
| Molecular Weight | 400.13 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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
- 8-Chloro-3-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-6-(trifluoromethyl)imidazo[1,5-a]pyridine (CAS 338419-98-0)
- 1,2-Bis(6-chloro-9H-purin-9-yl)ethane (CAS 23191-87-9)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(4-chlorophenyl)-1H-pyrrole-2-carboxamide (CAS 338397-52-7)
- 3-Chloro-6-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenoxy)pyridazine (CAS 338750-35-9)
- 4-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-2,5-dimethylbenzenesulfonyl chloride (CAS 1181761-96-5)
- 4-Chloro-N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N'-methylbenzenesulfonohydrazide (CAS 321433-32-3)
- N-(3-Chloro-4-methoxyphenyl)-1-(3-chloro-4-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 890892-22-5)
- 1-(2-Chloro-6-fluorobenzyl)-2-(2-chloropyridin-3-yl)-5,6-dimethyl-1H-benzo[d]imidazole (CAS 339101-20-1)
Recommended Standards
- 2,5-Dibromo-n-(3-(dimethylamino)propyl)benzenesulfonamide (CAS 919968-98-2)
- N-(2,4-dichlorophenyl)-2,2-difluoro-2-(3-(trifluoromethyl)phenoxy)acetamide (CAS 338792-06-6)
- 1-(4-Bromophenyl)-3-((4-bromophenyl)thio)propan-1-one (CAS 882749-13-5)
- N-(2,6-dichlorophenyl)-2,2-difluoro-2-(3-(trifluoromethyl)phenoxy)acetamide (CAS 338792-20-4)
- 3-(5-Methylfuran-2-yl)-1H-pyrazole-5-carbohydrazide (CAS 889992-97-6)
- (S)-2-Amino-N-ethyl-N-((1-methylpyrrolidin-2-yl)methyl)acetamide (CAS 1354003-54-5)
- 3-Methylnonan-3-ol (CAS 21078-72-8)
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- 212266-24-5 1,1,2,2-Tetrachloro(~13~C_2_)ethane DTXSID10745819 (CAS 212266-24-5)
- 4-(2,5-Dimethylthiophen-3-yl)pyrimidin-2-amine (CAS 364334-90-7)
- 8-Methyl-11(H)-benzo[a]carbazole (CAS 21064-33-5)
- cis-1-(3,4-Difluorophenyl)-4-pentylcyclohexanecarboxylate (CAS 94737-82-3)
- Methyl 2-(benzyloxy)benzoate (CAS 55142-16-0)
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