5-(5-Chloro-2-thienyl)-7-(trifluoromethyl)-pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride CAS 863435-88-5
| CAS No. | 863435-88-5 |
| Molecular Formula | C12H4Cl2F3N3OS |
| Molecular Weight | 366.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(5-Chloro-2-thienyl)-7-(trifluoromethyl)-pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride 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.
5-(5-Chloro-2-thienyl)-7-(trifluoromethyl)-pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride (CAS 863435-88-5), molecular formula C12H4Cl2F3N3OS and molecular weight 366.15 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H4Cl2F3N3OS, 5-(5-Chloro-2-thienyl)-7-(trifluoromethyl)-pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.15 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.
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.
Physical & Chemical Properties
| Molecular Formula | C12H4Cl2F3N3OS |
| Molecular Weight | 366.15 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-Chloro-5-(thiophen-2-yl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carbonyl chloride (CAS 848422-66-2)
- 3-(2-Chloro-6-fluorophenyl)-N-(2-chloropyridin-3-yl)-5-methylisoxazole-4-carboxamide (CAS 368869-90-3)
- (E)-{[5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methylidene}amino 4-chlorobenzoate (CAS 318284-51-4)
- 1-(4-Chloro-phenyl)-3-(6-chloro-4-trifluoromethyl-pyridin-2-yl)-thiourea (CAS 1311279-95-4)
- (1E)-1-(5-Chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)-N-(3-chloro-2,4-difluorophenyl)methanimine (CAS 320422-66-0)
- (3Z)-6-Chloro-3-[(4-chloro-3-nitrophenyl)methylidene]-3,4-dihydro-2H-1-benzothiopyran-4-one (CAS 900019-21-8)
- 1-Chloro-2-(4-chlorobenzyl)-3-methylbenzo[4,5]imidazo[1,2-a]pyridine-4-carbonitrile (CAS 459181-43-2)
- 4-Chloro-N-((4-chlorophenyl)sulfonyl)benzenesulfonamide (CAS 2725-55-5)
Recommended Standards
- 4-Iodobenzyl 4-formylbenzoate (CAS 896656-21-6)
- 6-Methyl-2-oxo-2H-pyran-4-yl 3-(2,6-dichlorophenyl)-1,2-oxazole-4-carboxylate (CAS 866151-67-9)
- 4-Acetoxy-4-iodobenzophenone (CAS 890099-52-2)
- Benodanil Impurity 8 (CAS 315248-43-2)
- 5-(2-Fluorophenyl)pyrrolidin-2-one (CAS 1314714-04-9)
- 3-(Tert-butoxycarbonyl)-3-azabicyclo[4.1.0]Heptane-2-carboxylic acid (CAS 1779596-18-7)
- 2,3,4,6,11,11A-hexahydro-1H-pyrazino[1,2-b]isoquinoline (CAS 50290-83-0)
- Doxorubicin Impurity 12 (CAS CATO-C4X-203312)
- 6-(Trifluoromethyl)-3-azabicyclo[4.1.0]Heptane hydrochloride (CAS 2306274-48-4)
- 2-(2-Methoxyethyl)-1,5-dimethylpiperazine (CAS 1206679-48-2)
- 2-(6-(Methyl(phenyl)amino)pyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352491-21-4)
- tert-Butyl 2-(methylthio)-4-(((trifluoromethyl)sulfonyl)oxy)-5,8-dihydropyrido[3,4-d]pyrimidine-7(6H)-carboxylate (CAS 338739-82-5)
- 4-Bromo-N-(4-bromobenzyl)benzamide (CAS 670229-48-8)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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