鞣酸单宁Tannic acid

鞣酸（单宁酸），CAS 号 1401-55-4，纯度 98%，性状为淡黄色至棕褐色粉末。属于多酚类有机原料，可作为有机合成中间体，用于化工原料加工相关场景。本品需密封、避光，置于阴凉干燥环境存放，防止受潮。常规包装为纸板桶内衬塑料袋，包装规格可协商。

Tannic acid, CAS No. 1401-55-4, purity 98%, appears as pale yellow to brown powder. It is a polyphenol organic raw material, which can be applied as an organic synthesis intermediate for chemical raw material processing. Keep it sealed, protected from light and stored in a cool and dry place to prevent moisture. It is normally packed in fiber drum with inner plastic bag, and the package specification can be negotiated.