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2-Methyl-2-butenoic acid 9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-yl ester |
2-Methyl-2-butenoic acid 9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-9-yl ester |
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2,3-Dimethyl-5-[(2E,6E)-3,7,11-trimethyl-2,6,10-dodecatrienyl]-2,5-cyclohexadiene-1,4-dione |
2,3-Dimethyl-5-[(2E,6E)-3,7,11-trimethyl-2,6,10-dodecatrienyl]-2,5-cyclohexadiene-1,4-dione |
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3-Methoxy-10,13-dimethyl-17-(6-methylheptan-2-yl)-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene |
胆固醇甲基醚 |
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