3-(4-Ethoxyphenyl)-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione CAS 67744-77-8

Purity 97%+In StockPharmaceutical Standards
CAS No.67744-77-8
Molecular FormulaC17H23N3O3
Molecular Weight317.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Ethoxyphenyl)-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione CAS 67744-77-8 chemical structure

Description

The occurrence of 3-(4-Ethoxyphenyl)-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-(4-Ethoxyphenyl)-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 67744-77-8), molecular formula C17H23N3O3 and molecular weight 317.38 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-(4-Ethoxyphenyl)-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (C17H23N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 317.38 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), 3-(4-Ethoxyphenyl)-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione 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 FormulaC17H23N3O3
Molecular Weight317.38 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976
Nitrogen Atoms3

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