Ethyl 1-(3-bromophenyl)-4-((2,4-dioxopentan-3-yl)oxy)-6-oxo-1,6-dihydropyridazine-3-carboxylate CAS 899992-09-7
| CAS No. | 899992-09-7 |
| Molecular Formula | C18H17BrN2O6 |
| Molecular Weight | 437.24 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 1-(3-bromophenyl)-4-((2,4-dioxopentan-3-yl)oxy)-6-oxo-1,6-dihydropyridazine-3-carboxylate.
Ethyl 1-(3-bromophenyl)-4-((2,4-dioxopentan-3-yl)oxy)-6-oxo-1,6-dihydropyridazine-3-carboxylate (CAS 899992-09-7), molecular formula C18H17BrN2O6 and molecular weight 437.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 1-(3-bromophenyl)-4-((2,4-dioxopentan-3-yl)oxy)-6-oxo-1,6-dihydropyridazine-3-carboxylate (C18H17BrN2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 437.24 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), Ethyl 1-(3-bromophenyl)-4-((2,4-dioxopentan-3-yl)oxy)-6-oxo-1,6-dihydropyridazine-3-carboxylate 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 | C18H17BrN2O6 |
| Molecular Weight | 437.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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Recommended Standards
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- N-BIs-boc-4-iodo-2-fluoroaniline (CAS 1314985-54-0)
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- n-(4-Methoxybutyl)tetrahydrothiophen-3-amine (CAS 1251030-08-6)
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