Product Description of WSTs
通过在四唑盐的苯环上引入正电荷或负电荷和羟基来开发水溶性四唑盐 (WST)。 正电荷，例如三烷基铵基团，提高了甲臜染料的水溶性。 然而，大的阳离子很容易与有机阴离子如羧酸根或磷酸根一起沉淀出来。 虽然羟基也提高了四唑盐的水溶性，但相应的甲臜染料的水溶性不够。 Dojindo 的 WST 在苯环上直接或间接添加磺酸基团，以提高水溶性。 Dojindo 还提供了几种新开发的苯偶氮型四唑盐，它们很容易用 NADH 或其他还原剂还原，得到橙色或紫色的甲臜染料。 由于苯偶氮基，颜色随重金属离子而变化。 由于同仁堂 WST 的水溶性很高，因此可以制备 10 mM 至 100 mM 的溶液。
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