Ethyl 2-{3-[(E)-2-(4-methoxyphenyl)ethenyl]-6-oxo-1,4,5,6-tetrahydropyridazin-1-yl}propanoate CAS 1164553-06-3
| CAS No. | 1164553-06-3 |
| Molecular Formula | C18H22N2O4 |
| Molecular Weight | 330.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-{3-[(E)-2-(4-methoxyphenyl)ethenyl]-6-oxo-1,4,5,6-tetrahydropyridazin-1-yl}propanoate.
CATO supplies Ethyl 2-{3-[(E)-2-(4-methoxyphenyl)ethenyl]-6-oxo-1,4,5,6-tetrahydropyridazin-1-yl}propanoate (CAS 1164553-06-3), a certified reference material (molecular formula C18H22N2O4, MW 330.38 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H22N2O4, Ethyl 2-{3-[(E)-2-(4-methoxyphenyl)ethenyl]-6-oxo-1,4,5,6-tetrahydropyridazin-1-yl}propanoate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 330.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C18H22N2O4 |
| Molecular Weight | 330.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Recommended Standards
- tert-Butyl 2,4-dioxospiro[1H-quinoline-3,4'-piperidine]-1'-carboxylate (CAS 1160247-78-8)
- 2-(2-Biphenyl-4-yl-vinyl)-6-hydroxy-benzoic acid methyl ester (CAS 1171924-89-2)
- N-(4-Methoxyphenyl)-2-methyl-6-phenyl-5H-pyrrolo[3,2-d]pyrimidin-4-amine (CAS 114685-09-5)
- tert-Butyl 3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)piperidine-1-carboxylate (CAS 1190890-10-8)
- Chlorazine (CAS 580-48-3)
- Methyl 2-methyl-4-oxo-1,4-dihydroquinoline-6-carboxylate (CAS 450379-86-9)
- 1-(3,4-Dimethoxyphenyl)-5-oxopyrrolidine-3-carboxamide (CAS 1267290-36-7)
- Isopropyl 2-amino-5-methyl-4-(4-propylphenyl)thiophene-3-carboxylate (CAS 905011-49-6)
- 7-Chloro-3-methyl-1H-indole-2-carbaldehyde (CAS 910442-16-9)
- 1-methyl-1,2,3,4-tetrahydronaphthalen-1-amine hydrochloride (CAS 1240528-50-0)
- 1-Benzyl 3-ethyl 4-ethylpyrrolidine-1,3-dicarboxylate (CAS 2306274-52-0)
- 2-((4-Allyl-5-(4-(tert-butyl)phenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(p-tolyl)acetamide (CAS 539812-49-2)
- N-Hydroxy-4-(thiazol-2-yl)benzimidamide (CAS 2197064-39-2)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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