3-(Methoxymethyl)-2,5,9-trimethyl-7H-furo[3,2-g]chromen-7-one 62442-60-8 AIDS-128623 AIDS128623 NSC292155 {7H-Furo[3,} {2-g][1]benzopyran-7-one,} 3-(methoxymethyl)-2,5,9-trimethyl-