2-乙酰氧基苯基甲烷二醇二乙酸酯

acetic acid-(furan-2-carboxylic acid )-anhydride

丁二烯

(1S,4R)-1,4,6-Trimethyl-2,3,7-trioxa-5-aza-bicyclo[2.2.1]hept-5-ene

Essigsaeure-o-methoxy-benzoesaeureanhydrid