2-[(4-Fluorophenyl)methyl]-6-[(E)-2-phenylethenyl]-2,3,4,5-tetrahydropyridazin-3-one CAS 303146-74-9
| CAS No. | 303146-74-9 |
| Molecular Formula | C19H17FN2O |
| Molecular Weight | 308.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-[(4-Fluorophenyl)methyl]-6-[(E)-2-phenylethenyl]-2,3,4,5-tetrahydropyridazin-3-one (CAS 303146-74-9) is a high-purity analytical reference standard with the molecular formula C19H17FN2O and a molecular weight of 308.35 g/mol.
Structurally, 2-[(4-Fluorophenyl)methyl]-6-[(E)-2-phenylethenyl]-2,3,4,5-tetrahydropyridazin-3-one (C19H17FN2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 308.35 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H17FN2O |
| Molecular Weight | 308.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
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- 4-(2-Fluorophenyl)-5-(methylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1447958-48-6)
- 2-(4-(2-Fluorophenyl)piperazin-1-yl)quinoxaline (CAS 339105-07-6)
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- 3-(4-Fluorophenyl)-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (CAS 338415-03-5)
- 4-[1-(4-fluorophenyl)-1-(4-hydroxyphenyl)ethyl]phenol (CAS 741-35-5)
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Recommended Standards
- 2,5-Dimethyl-1-[(4-sulfamoylphenyl)methyl]-1h-pyrrole-3-carboxylic acid (CAS 871217-38-8)
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- 2-Benzyl-9-fluoro-1,2,3,3a,4,9b-hexahydrochromeno[3,4-c]pyrrole-3a-carbonitrile (CAS 2007920-47-8)
- 2-(Benzenesulfonyl)-3-(1H-indol-3-yl)prop-2-enenitrile (CAS 95966-28-2)
- n-(2,3-Dichlorobenzyl)-2-methylpropan-2-amine (CAS 893577-85-0)
- 2-amino-8-hydrazinyl-6,9-dihydro-1H-purin-6-one hydrochloride (CAS 1461705-80-5)
- Methyl 2-Amino-5-iodobenzoate (CAS 77317-55-6)
- 2,5-Dichloro-3-thiophenepropanoic acid (CAS 7687-78-7)
- (1-Phenyl-1h-pyrazol-5-yl)methanamine hydrochloride (CAS 2680614-87-1)
- 6-Nitroimidazo[1,2-a]pyridine-2-carboxylic acid (CAS 904805-51-2)
- 6-((3-Bromophenyl)amino)pyrimidine-2,4(1H,3H)-dione (CAS 72255-49-3)
- 3,4-Dichloro-N-(2-isobutoxybenzyl)aniline (CAS 1040689-08-4)
- 2-Propenoic acid, polymer with 1-ethenyl-2-pyrrolidinone (CAS 28062-44-4)
- Myristoyl Pentapeptide -4 acetate (CAS 959610-30-1(free base))
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