海外直订Esteramide Quaternaries Derived from Piperazine and Fatty Acids 哌嗪和脂肪酸衍生的酯化酰胺季铵盐
氟唑菌酰胺 CAS:907204-3-3 N-乙基-2,3-二酮哌嗪 59702-3-7