guò yǎng huà běn jiǎ xiān
benzoil peroxide
过
guò
to cross
氧
yǎng
oxygen (chemistry)
化
huà
to make into
苯
běn
benzene
甲
jiǎ
first of the ten Heavenly Stems 十天干[shi2 tian1 gan1]
酰
xiān
acid radical
