Semiquantitative naked-eye detection of synthetic food colorants using highly-branched pipette tip as an all-in-one device was written by Wang, Shuangshou;Li, Wenzhi;Yuan, Zhihong;Jin, Qiwen;Ding, Zongpeng;Liu, Xiaomeng;Ye, Mingfu;Gu, Jing;Yan, Tingxuan;Chen, Hongmei;Chen, Yang. And the article was included in Analytica Chimica Acta in 2022.SDS of cas: 16423-68-0 This article mentions the following:
The existing strategies for the determination of synthetic food colorants (FCs) in manufactured foods are highly relied on specialized instruments and skilled personnel which are limited by the high tech. threshold and instrumentation cost. Herein, highly branched pipet tips (PTs) were fabricated as a robust all-in-one device for high-performance extraction and visual detection of FCs via handy aspiration and dispensing procedures of pipet controller. The d. of extraction groups and inner sp. surface area of PTs greatly increased after facile phys. coating and subsequent layer-by-layer branching reactions, and the maximum increment in binding capacity of PTs was exceeded 300 times at 8-10 iterations of branching layers, enabling the PTs to be colored just by short-time extraction of FCs and to achieve the instrument-independent visual detection of FCs by virtue of their outstanding PT-SPE performance. As a proof-of-concept, the in-situ PT-based solid phase extraction (PT-SPE) with high recoveries (from 91.73 ± 4.76% to 99.90 ± 4.14%) and semiquant. naked-eye detection of FCs (Allura red and brilliant blue) in real beverages were exptl. demonstrated to be highly feasible by comparison with classical techniques like spectrophotometry, HPLC, and mass spectrometry. In the experiment, the researchers used many compounds, for example, Sodium 2′,4′,5′,7′-tetraiodo-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-bis(olate) (cas: 16423-68-0SDS of cas: 16423-68-0).
Sodium 2′,4′,5′,7′-tetraiodo-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-bis(olate) (cas: 16423-68-0) belongs to benzofurans derivatives. Benzofurans are only weakly aromatic in nature and they are cleaved by many oxidative and reductive conditions. Benzofurans are stable towards alkali and readily polymerize on treatment with sulfuric acid, due to which they are useful for the preparation of low cost chemically relatively inert resins.SDS of cas: 16423-68-0
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem