5-methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one CAS 21004-65-9
| CAS No. | 21004-65-9 |
| Molecular Formula | C12H12N2O |
| Molecular Weight | 200.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-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.
5-methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one (CAS 21004-65-9) is a high-purity analytical reference standard with the molecular formula C12H12N2O and a molecular weight of 200.24 g/mol.
The molecular framework of 5-methyl-6-(4-methylphenyl)-2,3-dihydropyridazin-3-one (C12H12N2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12N2O |
| Molecular Weight | 200.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related methyl Standards
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- 3-Methyl-1-(4-methylphenyl)-1h-pyrazole-4-carbaldehyde (CAS 1152504-06-7)
- 3-methyl-1-(3-methylphenyl)-1H-pyrazole-4-carbaldehyde (CAS 1546562-99-5)
- 2-(4-methylphenyl)ethene-1-sulfonyl fluoride (CAS 1819971-30-6)
- 3-(4-Methylphenyl)-3-(trifluoromethyl)diazirine (CAS 87736-85-4)
- 2-(4-Methylphenyl)ethane-1-sulfonamide (CAS 97094-66-1)
- 3-(2-Methylphenyl)-3-azabicyclo[3.1.0]hexane-2,4-dione (CAS 866151-72-6)
Recommended Standards
- 5-Methyl-2,3-dihydro-1H-pyrrolo[3,2-c]quinolin-4(5H)-one (CAS 88263-93-8)
- 5-Oxo-2-((E)-3-phenylallylidene)pyrazolidin-2-ium-1-ide (CAS 62664-21-5)
- 5-Methyl-1-(o-tolyl)-1H-pyrazole-4-carbaldehyde (CAS 423768-40-5)
- 5-tert-Butyl-2-hydroxybenzene-1,3-dicarbonitrile (CAS 303994-63-0)
- 3-(2-Fluorophenyl)butan-1-amine (CAS 1225882-82-5)
- 5-METHYL-1-(PIPERIDIN-4-YL)-1H-BENZO[D]IMIDAZOL-2(3H)-ONE HCL (CAS 58859-82-8)
- 9-Octadecenoic acid (9Z)-, (1R)-1-(19-amino-3-hydroxy-3-oxido-8-oxo-2,4-dioxa-7-aza-3-phosphanonadec-1-yl)-1,2-ethanediyl ester (CAS 474944-10-0)
- O-Benzyl Posaconazole-d4 (CAS 1246818-95-0)
- N-((3,4-dimethoxyphenyl)sulfonyl)-N-(4-ethoxyphenyl)glycine (CAS 462064-77-3)
- Perfluorooctanamide (CAS 423-54-1)
- N-(2-(2-Methyl-1H-indol-3-yl)ethyl)-4-(trifluoromethyl)benzenesulfonamide (CAS 606133-69-1)
- 2,2-Difluoro-2-(2-fluorophenyl)ethan-1-amine (CAS 1380202-36-7)
- (+)-Benzylmethylphenylsilylacetic Acid[for e.e. Determination by NMR] (CAS 95373-54-9)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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