1-(2-Fluoroethyl)-1H-pyrazol-5-amine CAS 689295-20-3
| CAS No. | 689295-20-3 |
| Molecular Formula | C5H8FN3 |
| Molecular Weight | 129.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H8FN3, 1-(2-Fluoroethyl)-1H-pyrazol-5-amine contains a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 129.14 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.
1-(2-Fluoroethyl)-1H-pyrazol-5-amine (CAS 689295-20-3), molecular formula C5H8FN3 and molecular weight 129.14 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 1-(2-Fluoroethyl)-1H-pyrazol-5-amine 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.
Physical & Chemical Properties
| Molecular Formula | C5H8FN3 |
| Molecular Weight | 129.14 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.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluoroethyl Standards
- 1-(2-Fluoroethyl)-1H-pyrazol-3-amine (CAS 1258863-98-7)
- 1-(2-Fluoroethyl)-1h-pyrazol-4-amine (CAS 1427021-88-2)
- 5-(1-Fluoroethyl)-1H-pyrazol-3-amine (CAS 1451391-06-2)
- 3-(1-fluoroethyl)oxetane-3-carbonitrile (CAS 2115759-90-3)
- 1-(2-Fluoroethyl)-3-methyl-1h-pyrazole (CAS 1427023-74-2)
- 1-(2-Fluoroethyl)-4-methyl-1H-pyrazole (CAS 1429418-52-9)
- 2-(2-fluoroethyl)cyclopentan-1-one (CAS 1531547-10-0)
- 1-(2-Fluoroethyl)cyclobutanecarbonitrile (CAS 1255147-57-9)
Recommended Standards
- 5-Thioxo-3,4-dihydro-1,2,4-triazin-3(2H)-one (CAS 1627-37-8)
- 3-Nitrothiophene (CAS 822-84-4)
- n-(1,2,3-Thiadiazol-4-ylmethylidene)hydroxylamine (CAS 162640-72-4)
- 3-Thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one (CAS 626-08-4)
- 3,6-Bis(trifluoromethyl)pyrazin-2-amine (CAS 1803601-40-2)
- N-(2-methoxybenzyl)-1-(4-methoxyphenyl)-5-oxopyrrolidine-3-carboxamide (CAS 878725-34-9)
- N-(3-Methoxyphenyl)-N-methylthiocarbamoyl chloride (CAS 83508-58-1)
- 7-(2H-1,3-Benzodioxol-5-yl)-2-(4-tert-butylphenyl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile (CAS 860650-45-9)
- N-((4-Bromophenyl)sulfonyl)hexanamide (CAS 2097938-57-1)
- 2-Chloro-5-fluoro-4-(3-fluorophenoxy)pyrimidine (CAS 1511255-82-5)
- 1-Hydroxy-4-((4-(2-hydroxyethyl)phenyl)amino)anthracene-9,10-dione (CAS 71335-86-9)
- Mirogabalin Impurity 103 (CAS CATO-C4X-2924103)
- Ethyl 3-amino-2-(3-fluorobenzyl)propanoate (CAS 1038706-05-6)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
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