2-(3,4-Difluorophenyl)-4-((3-methylbut-3-en-1-yl)oxy)-5-(4-(methylsulfonyl)phenyl)pyridazin-3(2H)-one CAS 890306-92-0
| CAS No. | 890306-92-0 |
| Molecular Formula | C22H20F2N2O4S |
| Molecular Weight | 446.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(3,4-Difluorophenyl)-4-((3-methylbut-3-en-1-yl)oxy)-5-(4-(methylsulfonyl)phenyl)pyridazin-3(2H)-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.
2-(3,4-Difluorophenyl)-4-((3-methylbut-3-en-1-yl)oxy)-5-(4-(methylsulfonyl)phenyl)pyridazin-3(2H)-one (CAS 890306-92-0), molecular formula C22H20F2N2O4S and molecular weight 446.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(3,4-Difluorophenyl)-4-((3-methylbut-3-en-1-yl)oxy)-5-(4-(methylsulfonyl)phenyl)pyridazin-3(2H)-one (C22H20F2N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 446.47 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.
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 | C22H20F2N2O4S |
| Molecular Weight | 446.47 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Difluorophenyl Standards
- 2-(3,4-Difluorophenyl)-4-((3-methylbut-2-en-1-yl)oxy)-5-(4-(methylsulfonyl)phenyl)pyridazin-3(2H)-one (CAS 890306-94-2)
- N-(2,4-Difluorophenyl)-2-[4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepin-2-yl]acetamide (CAS 1775421-30-1)
- N-(2,5-Difluorophenyl)-2-[4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepin-2-yl]acetamide (CAS 1775510-60-5)
- 1-(2,4-Difluorophenyl)-7-(3,5-dimethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 182869-08-5)
- 1-(2,4-Difluorophenyl)-7-(4-ethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 182869-10-9)
- N-(2,4-difluorophenyl)-2-((3-methyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040633-88-2)
- 5-{bis[(3,4-difluorophenyl)methyl]amino}-1-(4-methylphenyl)-1H-pyrazole-4-carbonitrile (CAS 957040-67-4)
- N-(2,5-Difluorophenyl)-2-(5-((3,5-dimethylphenyl)amino)-7-methyl-3-oxo-[1,2,4]triazolo[4,3-c]pyrimidin-2(3H)-yl)acetamide (CAS 1251626-45-5)
Recommended Standards
- 5-(4-Ethylphenyl)-4-(3-fluoro-4-methoxybenzoyl)-3-hydroxy-1-(pyridin-4-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 609793-37-5)
- 5-Oxo-1-(p-tolyl)-N-(2-(4-(trifluoromethyl)-5,6,7,8-tetrahydroquinazolin-2-yl)ethyl)pyrrolidine-3-carboxamide (CAS 1396867-10-9)
- 7-(4-(2,5-Dimethyl-1H-pyrrol-1-yl)phenyl)-2-methyl-3-(3-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine (CAS 865658-68-0)
- Tris(4-(1H-1,2,4-triazol-1-yl)phenyl)amine (CAS 1393473-88-5)
- 1,1,1,2,4,4,5,7,7,8,10,10,11,13,13,14,14,15,15,15-Icosafluoro-5,8,11-tris(trifluoromethyl)-3,6,9,12-tetraoxapentadecane (CAS 26738-51-2)
- N-[4-amino-3-(trifluoromethyl)phenyl]furan-3-carboxamide (CAS 926187-00-0)
- N-(6,7-Dihydro-[1,4]dioxino[2',3':4,5]benzo[1,2-d]thiazol-2-yl)isoxazole-5-carboxamide (CAS 941913-89-9)
- 5-Bromo-1H-pyrrolo[2,3-c]pyridine (CAS 1215387-58-8)
- (5-(Piperidin-1-ylmethyl)-1,2,4-oxadiazol-3-yl)methanamine (CAS 893752-95-9)
- Isopropyl 2-hydroxy-2-methylpropanoate (CAS 34900-10-2)
- 5-Methyl-1-propyl-1H-pyrazole-3-carboxylic acid (CAS 956950-99-5)
- Methyl 2-Acetamido-3-(1-pyrazolyl)propanoate (CAS 170305-15-4)
- 2-Morpholino-2-(p-tolyl)acetic acid (CAS 490026-98-7)
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
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