1-[3-(4-Fluorophenyl)-2,1-benzisoxazol-5-yl]-1-ethanone N-(2-fluorophenyl)hydrazone CAS 306978-26-7
| CAS No. | 306978-26-7 |
| Molecular Formula | C21H15F2N3O |
| Molecular Weight | 363.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-[3-(4-Fluorophenyl)-2,1-benzisoxazol-5-yl]-1-ethanone N-(2-fluorophenyl)hydrazone (CAS 306978-26-7), molecular formula C21H15F2N3O and molecular weight 363.36 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-[3-(4-Fluorophenyl)-2,1-benzisoxazol-5-yl]-1-ethanone N-(2-fluorophenyl)hydrazone (C21H15F2N3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 363.36 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-[3-(4-Fluorophenyl)-2,1-benzisoxazol-5-yl]-1-ethanone N-(2-fluorophenyl)hydrazone 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 | C21H15F2N3O |
| Molecular Weight | 363.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluorophenyl Standards
- (Z)-[(4-Fluorophenyl)[2-(4-methylphenyl)cyclopropyl]methylidene]amino furan-2-carboxylate (CAS 338749-06-7)
- 1-(2-fluorophenyl)-6-(4-methoxyphenyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011399-49-7)
- 2,4,6-tris(4-fluorophenyl)-1,3,5-triazine (CAS 130156-10-4)
- 2-(2-((6-(4-Fluorophenyl)pyridazin-3-yl)oxy)ethyl)isoindoline-1,3-dione (CAS 2097937-36-3)
- 1-[(4-Fluorophenyl)sulfonyl]-4-phenylpiperidine-4-carboxylic acid (CAS 446029-84-1)
- 2-[(3-Fluorophenyl)methyl]-6-phenyl-5-(piperidin-1-yl)-2,3-dihydropyridazin-3-one (CAS 861208-98-2)
- 2-(4-Fluorophenyl)-N-(4-(pyrrolidin-1-yl)butyl)quinolin-4-amine (CAS 510755-19-8)
- 1-(3-Fluorophenyl)-3-methyl-4,6-bis(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridine (CAS 866142-69-0)
Recommended Standards
- 1,2-Dimethoxy-12-methyl-[1,3]dioxolo[4',5':4,5]benzo[1,2-c]phenanthridin-13(12H)-one (CAS 28342-33-8)
- 1-[4-(difluoromethyl)-6-(3-methoxyphenyl)pyrimidin-2-yl]piperidine-4-carboxylic acid (CAS 863209-30-7)
- 1-(4-Flourobenzenesulfonyl)-3-(1,3-dioxolynyl)-5-methyl-1,3-dihydro-2H-indol-2-one (CAS 866152-08-1)
- 1-{4-[(2E)-3-(3,4-Dimethoxyphenyl)prop-2-enoyl]phenyl}-1H-pyrrole-2,5-dione (CAS 949923-55-1)
- (5-tert-Butyl-2-methylfuran-3-yl)methanol (CAS 154160-60-8)
- 5-((3-Acetylphenyl)amino)-5-oxopentanoic acid (CAS 194784-50-4)
- Benzyl N-({4-[(4-chlorophenyl)carbamoyl]phenyl}methyl)carbamate (CAS 477847-75-9)
- Potassium 2,2-dicyanoethen-1-olate (CAS 210360-47-7)
- N-(4-bromobenzyl)butan-2-amine hydrochloride (CAS 1158472-86-6)
- Fungisterol (CAS 516-78-9)
- a,a-Dicyclohexyl-2-pyridineethanol (CAS 102658-00-4)
- N-Boc-1-(6-bromo-3-pyridyl)methanamine (CAS 864266-29-5)
- (2R)-2-(3-phenylpropanamido)propanoic acid (CAS 1308958-74-8)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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