1. a crystalline compound C6H3(OH)2CHO which is synthetically prepared and the monomethyl ether of which is vanillin; 3,4-dihydroxy-benzaldehyde
protocatechualdehyde 例句
英汉例句
Methods By means of UPLC, apply factorial experiment design to investigate overall the changing rule of the contents of salvianolic acid B, tanshinol, protocatechualdehyde and etc.