5-Methyl-4-nitroso-3-(trifluoromethyl)-1H-pyrazole CAS 1291099-86-9
| CAS No. | 1291099-86-9 |
| Molecular Formula | C5H4F3N3O |
| Molecular Weight | 179.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 179.10 g/mol gives 5-Methyl-4-nitroso-3-(trifluoromethyl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Methyl-4-nitroso-3-(trifluoromethyl)-1H-pyrazole (CAS 1291099-86-9), a certified reference material (molecular formula C5H4F3N3O, MW 179.10 g/mol) for analytical method development and quality control.
5-Methyl-4-nitroso-3-(trifluoromethyl)-1H-pyrazole (C5H4F3N3O) contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 5-Methyl-4-nitroso-3-(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 | C5H4F3N3O |
| Molecular Weight | 179.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 5-(Trifluoromethyl)pyrazole-3-carboxamide (CAS 1276541-94-6)
- 2-(Trifluoromethoxy)pyridin-3-ol (CAS 1361836-59-0)
- 5-(Trifluoromethoxy)pyrazin-2-amine (CAS 1261884-22-3)
- 2-(Trifluoromethoxy)pyridin-4-ol (CAS 1361880-86-5)
- 2-Isopropoxy-N-[2-(2-methoxyethoxy)benzyl]aniline (CAS 1040683-64-4)
- 2-Chloro-4-ethylbenzoic acid (CAS 1261868-02-3)
- (R)-(2-Chlorophenyl)oxirane (CAS 62566-66-9)
- 2,4-Dimethyl-α-carboline (CAS 13315-71-4)
- 2,2,2-Trifluoro-1-(2-fluoro-6-iodo-phenyl)-ethanone (CAS 1208077-50-2)
- 7-Fluoro-1-iodoisoquinoline (CAS 1207448-25-6)
- Aztreonam impurity 66 (CAS CATO-C4X-152266)
- 3-methyl-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 1111637-95-6)
- 3-Hydroxymethyl-5,6-Dihydro-8H-[1,2,4]Triazolo[4,3-A]Pyrazine-7-Carboxylic Acid Tert-Butyl Ester (CAS 1251002-77-3)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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