2-((3,4-Dihydroxyphenyl)hydroxymethyl)-2,3-dihydro-7H-pyrano(2,3-g)-1,4-benzodioxin-7-one 72165-29-8 7H-Pyrano(2,3-g)-1,4-benzodioxin-7-one, 2-((3,4-dihydroxyphenyl)hydroxymethyl)-2,3-dihydro- Maoyancaosu