5-Ethyl-2-(4-fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one CAS 1341007-82-6
| CAS No. | 1341007-82-6 |
| Molecular Formula | C15H14FN3O2 |
| Molecular Weight | 287.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 287.29 g/mol gives 5-Ethyl-2-(4-fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Ethyl-2-(4-fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1341007-82-6) is a high-purity analytical reference standard with the molecular formula C15H14FN3O2 and a molecular weight of 287.29 g/mol.
Based on its molecular formula C15H14FN3O2, 5-Ethyl-2-(4-fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 287.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 5-Ethyl-2-(4-fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one 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 | C15H14FN3O2 |
| Molecular Weight | 287.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 5-Ethyl-2-(3-fluorophenyl)-3-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1713590-42-1)
- (E)-2-((4-fluorophenyl)amino)-N'-(2-hydroxybenzylidene)acetohydrazide (CAS 298218-07-2)
- 1-(4-Fluorophenyl)-2-(2-(isopropylamino)pyrimidin-4-yl)ethane-1,2-dione (CAS 876521-37-8)
- 2-[N-(4-Fluorophenyl)-1-phenylformamido]propanoic acid (CAS 879123-49-6)
- 4-(4-Fluorophenyl)-N-(thiazol-2-yl)-1H-pyrrole-2-carboxamide (CAS 1251685-98-9)
- Methyl 4-(4-fluorophenyl)thieno[3,2-c]pyridine-6-carboxylate (CAS 1344688-13-6)
- Methyl 4-(2-fluorophenyl)thieno[3,2-c]pyridine-6-carboxylate (CAS 1344704-45-5)
- 4-(4-Fluorophenyl)-3-(1H-pyrrol-1-yl)thiophene-2-carboxylic acid (CAS 1708268-48-7)
Recommended Standards
- 4-((1,1-Dioxidobenzo[d]isothiazol-3-yl)oxy)benzaldehyde (CAS 132636-66-9)
- 3-(10-Fluoro-2,4-dimethylpyrimido[1,2-b]indazol-3-yl)propanoic acid (CAS 1401319-37-6)
- Methyl (ethyldiphenylphosphoranylidene)carbamate (CAS 127802-82-8)
- 3-(3-Fluoro-4-isopropoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 1408087-64-8)
- 4-(((Piperidin-2-ylmethyl)amino)methyl)benzonitrile hydrochloride (CAS 1353989-89-5)
- 3-(((5-Methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1119452-70-8)
- Ethyl 5-(benzyloxy)-2-methylbenzofuran-3-carboxylate (CAS 5010-40-2)
- 8-Chloro-2-oxo-2H-chromene-3-carboxylic acid (CAS 107747-67-1)
- Methyl 1-cyanopyrrolidine-3-carboxylate (CAS 367906-55-6)
- 2-Benzyl-1-(2,4-bis(benzyloxy)-5-methoxyphenyl)-3-phenylpropan-1-one (CAS 1346602-80-9)
- Allyl 5-bromo-2-hydroxybenzoate (CAS 220340-67-0)
- 3-Ethyl-5-hydroxybenzenesulfonamide (CAS 1243407-66-0)
- 2-(Boc-amino)-3-phenylpropylamine (CAS 179051-72-0)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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