1173-43-9
2-(3-hydroxy-6-oxoxanthen-9-yl)-5-isothiocyanatobenzoic acid
+
108-24-7
乙酸酐
→
118378-76-0
(6'-acetyloxy-5-isothiocyanato-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl) acetate