37975-62-5 | 2-Methyl-2-butenoic acid [7,8-dihydro-6-methoxy-8,8-dimethyl-2-oxo-2H,6H-benzo[1,2-b:5,4-b']dipyran-7-yl] ester | C20H22 O6 |
37975-61-4 | (3R,4R)-2,2-DIMETHYL-8-OXO-2,3,4,8-TETRAHYDROPYRANO[3,2-G]CHROMENE-3,4-DIYL BIS(2,3-DIMETHYLOXIRANE-2-CARBOXYLATE) | C24H26O9 |