3-(Trifluoromethyl)pyrazole CAS 20154-03-4
| CAS No. | 20154-03-4 |
| Molecular Formula | C4H3F3N2 |
| Molecular Weight | 136.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-(Trifluoromethyl)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.
CATO supplies 3-(Trifluoromethyl)pyrazole (CAS 20154-03-4), a certified reference material (molecular formula C4H3F3N2, MW 136.08 g/mol) for analytical method development and quality control.
Based on its molecular formula C4H3F3N2, 3-(Trifluoromethyl)pyrazole contains a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 136.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C4H3F3N2 |
| Molecular Weight | 136.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Trifluoromethyl Standards
- 1087160-38-0 5-(Trifluoromethyl)-1H-pyrazole MFCD09860582 (CAS 1087160-38-0)
- 1-Trifluoromethyl-1H-pyrazole (CAS 169382-91-6)
- 4-Trifluoromethyl-1H-imidazole (CAS 33468-69-8)
- 2-(Trifluoromethyl)furan (CAS 56286-83-0)
- 5-(Trifluoromethyl)isoxazole (CAS 116584-43-1)
- 5-(trifluoromethyl)-1,3-oxazole (CAS 1359706-47-0)
- 3-(Trifluoromethyl)isoxazole (CAS 32990-29-7)
- 4-(trifluoromethyl)-1,3-oxazole (CAS 2044772-79-2)
Recommended Standards
- 2-Trifluoromethylimidazole (CAS 66675-22-7)
- 3-Amino-4,4,4-trifluoro-2-butenenitrile (CAS 33561-24-9)
- (S)-2-Fluorobutanedioic Acid (CAS 26109-19-3)
- 4-Trifluoromethylpyrazole (CAS 52222-73-8)
- 4,4'-Dibromo-2,2'-bis(triisopropylsilyl)-5,5'-bithiazole (CAS 1223559-98-5)
- 3-Methoxy-N-(3-nitrobenzyl)propan-1-amine (CAS 932261-55-7)
- 11-chloroeicosafluoro-3-oxaundecane-1-sulfonicacid (CAS 763051-92-9)
- N-(3-Chloropyrazin-2-yl)acetamide (CAS 1698442-38-4)
- 4,5-Dihydropyrrolo[3,4-b]pyrrol-6(1H)-one (CAS 1367941-46-5)
- Tert-butyl (1-amino-3-ethylpentan-2-yl)carbamate (CAS 1249986-34-2)
- Ethyl 5-amino-1H-pyrrole-3-carboxylate (CAS 1378780-52-9)
- 2-(Difluoromethyl)-4-nitroaniline (CAS 1261617-68-8)
- (S)-6,7-dihydro-5H-cyclopenta[c]pyridine-1,5-diamine dihydrochloride (CAS 2231664-72-3)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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