4-(Fluoromethyl)-1H-pyrazole CAS 881178-93-4
| CAS No. | 881178-93-4 |
| Molecular Formula | C4H5FN2 |
| Molecular Weight | 100.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(Fluoromethyl)-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.
CATO supplies 4-(Fluoromethyl)-1H-pyrazole (CAS 881178-93-4), a certified reference material (molecular formula C4H5FN2, MW 100.09 g/mol) for analytical method development and quality control.
Structurally, 4-(Fluoromethyl)-1H-pyrazole (C4H5FN2) contains a nitrile group, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 100.09 g/mol, it falls into the low-molecular-weight range. 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 | C4H5FN2 |
| Molecular Weight | 100.09 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.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluoromethyl Standards
- 1-(fluoromethyl)cyclopropane-1-carbaldehyde (CAS 1268519-96-5)
- 3-(fluoromethyl)cyclobutan-1-one (CAS 913339-21-6)
- 1-(fluoromethyl)cyclobutan-1-amine (CAS 1268954-19-3)
- 3-(Fluoromethyl)pyrrolidine (CAS 1408246-04-7)
- 1-[1-(fluoromethyl)cyclopropyl]methanamine (CAS 1550947-28-8)
- 2-(fluoromethyl)-2-methylazetidine (CAS 1779925-41-5)
- 3-(Fluoromethyl)-3-methylazetidine (CAS 1780827-66-8)
- (2R)-2-(Fluoromethyl)pyrrolidine (CAS 875608-74-5)
Recommended Standards
- 3-Fluorocyclopent-2-en-1-one (CAS 808737-58-8)
- 5-Fluoro-1-methyl-1H-pyrazole (CAS 69843-15-8)
- 3-Fluoroazetidine-3-carbonitrile (CAS 2092368-50-6)
- 5-Fluoro-2-methyl-1H-imidazole (CAS 71516-19-3)
- [1,1':4',1''-Terphenyl]-4,4''-dicarbonitrile (CAS 17788-93-1)
- (R)-2-(Ethyl(1-methylpyrrolidin-3-yl)amino)ethanol (CAS 1354018-79-3)
- N-Methyl-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)ethan-1-amine dihydrochloride (CAS 1820706-18-0)
- 5-Amino-6-bromo-2-methyl-2H-pyridazin-3-one (CAS 2091250-68-7)
- Lenalidomide Impurity 13 (CAS 1975-50-4)
- 4-Chloro-5-methyl-3-(1,2,2,2-tetrafluoro-1-(perfluoropropoxy)ethyl)-1H-pyrazole (CAS 247113-93-5)
- [2-(Acetyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid (CAS 1353985-87-1)
- N,N-Diphenyl-N'-tosylacetimidamide (CAS 5504-03-0)
- 5-Chloro-N-(2,4-difluorophenyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 158712-19-7)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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