3-Ethyl-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide CAS 565192-00-9
| CAS No. | 565192-00-9 |
| Molecular Formula | C11H12N4O2 |
| Molecular Weight | 232.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Ethyl-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Ethyl-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide (CAS 565192-00-9), a certified reference material (molecular formula C11H12N4O2, MW 232.24 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H12N4O2, 3-Ethyl-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 232.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 3-Ethyl-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide 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 | C11H12N4O2 |
| Molecular Weight | 232.24 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
Recommended Standards
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- 3-Methoxy-4-(4-methyl-1H-imidazol-1-yl)benzoic acid (CAS 937026-26-1)
- 3-Bromo-5-(chlorodifluoromethyl)-1,2,4-oxadiazole (CAS 1567032-00-1)
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- 2-Methyl-5,6-dihydro-4H-pyrrolo[3,4-d]thiazole dihydrobromide (CAS 2060006-12-2)
- 3'-Fluoro-4-hydroxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 22494-43-5)
- 1-((4-Methoxyphenyl)sulfonyl)-3-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 2227205-54-9)
- Diethyl 3,3'-(1,3-phenylene)bis(isoxazole-5-carboxylate) (CAS 66421-25-8)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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