山奈酚-3-O-(2',6'-二-O-反式-对-香豆酰基)-beta-D-吡喃葡萄糖苷价格, Kaempferol-3-O-(2',6'-di-O-trans-p-coumaroyl)-beta-D-glucopyranoside对照品, CAS号:121651-61-4