... is glycosides, bitter, spicy, can stimulate the mucous membranes in the nose to make people sneeze. The pure tea saponin is white crystal, ... to Methyl red, hard to dissolve in the pure Methyl alcohol, doesn’t dissolve in ether, acetone, benzene organic solvent, ... , easing pain, anti-wheeping and etc. The light yellow fine powder is widely used in the production of cleansing agents, wool, knitwear, ...