The structural elucidation and syntheses methods of new peripherally tetra-substituted MPcs [Cu^II (6), Co^II (7), MnCI^III (8), and Ni^II (9) phthalocyanines] carrying 4-methyl-N-(3-morpholinopropyl)benzenesulfonamide moieties were reported in the present study. The corroboration of the prepared compounds (3, 5, and 6 to 9) was made by LC–TOF/MS, UV–Vis, Fourier Infrared, ¹H NMR, ¹³C NMR, and MALDI–TOF mass spectral data. Herein, we submit a new procedure that uses metallophthalocyanine complexes for the first time as spectrofluorimetric agents to detect and determine health-threatening food additive, Sudan II dye, with a new simpler, cheaper, and faster spectrofluorimetric method instead of time-consuming and expensive HPLC processes. Furthermore, the sensitivities of the proposed methods are good enough to determine the amount of dye at a concentration of 0.1 mg/L. The methods have LOD values between 0.035 and 0.050 mg/L. The linear ranges are found to be between 0-8.3 mg/L. The precision of the methods is determined to be between 1.1 and 2.4 as % RSD. Therefore, this study would make a good contribution to the food industry and phthalocyanine chemistry by detecting and determining the hazardous food colorant Sudan II with metal phthalocyanines.

带有4-甲基-N- (3-)的新型外围四取代MPcs[Cu ^II (6) 、Co ^II (7) 、MnCl ^III (8)和Ni ^II (9)酞菁]的结构解析和合成方法本研究报告了吗啉代丙基）苯磺酰胺部分。通过LC-TOF/MS、UV-Vis、傅里叶红外、 ¹ H NMR、 ¹³ C NMR 和MALDI-TOF 质谱数据对所制备的化合物（ 3、5和6至9 ）进行了验证。在此，我们提出了一种新的程序，首次使用金属酞菁配合物作为分光荧光试剂来检测和测定威胁健康的食品添加剂苏丹II染料，用一种新的更简单、更便宜、更快速的分光荧光方法，而不是耗时和昂贵的HPLC 过程。此外，所提出方法的灵敏度足以确定浓度为 0.1 mg/L 的染料量。该方法的 LOD 值在 0.035 至 0.050 mg/L 之间。发现线性范围在 0-8.3 mg/L 之间。该方法的精度确定为 1.1 至 2.4（% RSD）。因此，本研究通过金属酞菁对有害食品着色剂苏丹II进行检测和测定，将为食品工业和酞菁化学做出良好的贡献。