Molecular Formula

2H-1-Benzopyran-2-one, 3,4-dihydro-3-[(phenylseleno)methyl]-5-[(tetrahydro-2H-pyran-2-yl)oxy]-

CAS:88703-40-6

Formula:C21H22O4Se

9H-Selenoxanthenium, 9-(1-methylethyl)-, 3-hydroxy-1-(methoxycarbonyl)-2-oxopropylide, trans-

CAS:93938-89-7

Formula:C21H22O4Se

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