3-(3-Chloro-2-methylphenyl)-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide CAS 866039-09-0
| CAS No. | 866039-09-0 |
| Molecular Formula | C16H13ClN4O2 |
| Molecular Weight | 328.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(3-Chloro-2-methylphenyl)-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.
CATO supplies 3-(3-Chloro-2-methylphenyl)-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide (CAS 866039-09-0), a certified reference material (molecular formula C16H13ClN4O2, MW 328.75 g/mol) for analytical method development and quality control.
3-(3-Chloro-2-methylphenyl)-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide (C16H13ClN4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C16H13ClN4O2 |
| Molecular Weight | 328.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- 2,4-dimethyl-5-nitro-1H-imidazole (CAS 49780-25-8)
- Crizotinib impurity 33 (CAS CATO-C4X-102533)
- 6-Bromo-[2,3'-bipyridine]-5'-carboxylic acid (CAS 1346687-01-1)
- (E)-1-(2,4-Dihydroxy-3,6-dimethoxyphenyl)-3-phenylprop-2-en-1-one (CAS 129724-43-2)
- 3-Methylpyridine-2-amidoxime N-Hydroxy-3-methyl-2-pyridinecarboximidamide 2-(N-Hydroxycarbamimidoyl)-3-methylpyridine N'-Hydroxy-3-methylpyridine-2-carboximidamide 690632-33-8 (CAS 690632-33-8)
- 4-Chloro-3-cyclopropoxy-5-fluoropyridine (CAS 1243399-10-1)
- Hexapeptide-10 (CAS 146439-94-3)
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