5-(7-(2-Chloro-4-methoxyphenoxy)heptyl)-3-methylisoxazole CAS 91944-93-3

Description

The occurrence of 5-(7-(2-Chloro-4-methoxyphenoxy)heptyl)-3-methylisoxazole is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-(7-(2-Chloro-4-methoxyphenoxy)heptyl)-3-methylisoxazole (CAS 91944-93-3), molecular formula C18H24ClNO3 and molecular weight 337.84 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-(7-(2-Chloro-4-methoxyphenoxy)heptyl)-3-methylisoxazole (C18H24ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 337.84 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 5-(7-(2-Chloro-4-methoxyphenoxy)heptyl)-3-methylisoxazole 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

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