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Registry Number:         64790-67-6

Rotation (-).
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Formula:         C20 H22 O7

CA Index Name:         7H-Furo[3,2-g][1]benzopyran-7-one, 4-methoxy-9-[(2,2,5,5-tetramethyl-1,3-dioxolan-4-yl)methoxy]-, (-)-

Other Names:         Byakangelicin acetonide
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