2-[(2-Chlorophenyl)methyl]-6-[(E)-2-(4-methylphenyl)ethenyl]-2,3,4,5-tetrahydropyridazin-3-one CAS 1164543-03-6
| CAS No. | 1164543-03-6 |
| Molecular Formula | C20H19ClN2O |
| Molecular Weight | 338.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-[(2-Chlorophenyl)methyl]-6-[(E)-2-(4-methylphenyl)ethenyl]-2,3,4,5-tetrahydropyridazin-3-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-[(2-Chlorophenyl)methyl]-6-[(E)-2-(4-methylphenyl)ethenyl]-2,3,4,5-tetrahydropyridazin-3-one (CAS 1164543-03-6), a certified reference material (molecular formula C20H19ClN2O, MW 338.83 g/mol) for analytical method development and quality control.
The molecular framework of 2-[(2-Chlorophenyl)methyl]-6-[(E)-2-(4-methylphenyl)ethenyl]-2,3,4,5-tetrahydropyridazin-3-one (C20H19ClN2O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-[(2-Chlorophenyl)methyl]-6-[(E)-2-(4-methylphenyl)ethenyl]-2,3,4,5-tetrahydropyridazin-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H19ClN2O |
| Molecular Weight | 338.83 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.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- 4-(3-Chlorophenyl)-5-(ethylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1707567-09-6)
- 4-(4-Chlorophenyl)-5-(ethylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1710193-68-2)
- 1-(2-Chlorophenyl)-N,N-diethylisoquinoline-3-carboxamide (CAS 89242-08-0)
- 1-(3-Chlorophenyl)-N,N-diethylisoquinoline-3-carboxamide (CAS 89242-15-9)
- 1-(4-Chlorophenyl)-N,N-diethylisoquinoline-3-carboxamide (CAS 89242-41-1)
- 2-(4-(4-Chlorophenyl)-2-isobutyramidothiazol-5-yl)acetic acid (CAS 1181254-94-3)
- (E)-(2-chlorophenyl)(thieno[2,3-b]quinolin-2-yl)methanone oxime (CAS 692737-16-9)
- 2-(2-(3-(3-Chlorophenyl)ureido)thiazol-4-yl)-N-ethylacetamide (CAS 923139-56-4)
Recommended Standards
- Tert-butyl 4-(2-(4-chlorophenyl)-2-oxoethyl)piperazine-1-carboxylate (CAS 1146080-70-7)
- 7-Chloro-N-(4-(pyrrolidin-1-ylmethyl)pyridin-2-yl)isoquinolin-3-amine (CAS 1204701-70-1)
- (R)-tert-Butyl 2-((4-chlorobenzyl)carbamoyl)pyrrolidine-1-carboxylate (CAS 1140495-84-6)
- Tert-butyl (1-(4-chloro-2-formylphenyl)piperidin-3-yl)carbamate (CAS 1228183-71-8)
- 5-Bromo-7-iodo-1H-indole (CAS 123020-20-2)
- 5-(4-(4-Hydroxyphenyl)piperazin-1-yl)pyrrolidin-2-one (CAS 91703-21-8)
- 4-(Difluoromethyl)-2-methoxy-5-(trifluoromethyl)nicotinic acid (CAS 1806995-35-6)
- 2-(Difluoromethyl)-6-(1H-pyrazol-3-yl)pyridine (CAS 2306271-51-0)
- 2-Pyrazoline (CAS 109-98-8)
- tert-Butyl cyclopropyl((1-(2-hydroxyethyl)piperidin-2-yl)methyl)carbamate (CAS 1353952-56-3)
- 1-phenylprop-2-en-1-ol 42273-76-7 Vinylbenzyl alcohol (CAS 42273-76-7)
- 1-(4-Ethylphenyl)-N-propylpropan-1-amine (CAS 1095611-99-6)
- 1-(2-Methyl-6-(trifluoromethyl)phenyl)ethan-1-one (CAS 1783401-20-6)
- Semaglutide impurity 74 (CAS CATO-C4X-222674)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com