Other Protein-related Products Biontin-Hydrazide生物素酰肼 21022ES 翌圣生物 Yeasen 规格/货号 2 个 CAS号(CAS NO.)66640-86-6分子式(Molecular Fomular)C10H18N4O2S分子量(Molecular Weight)258.34纯度(Purity)98%外观(Appearance)白色粉末结构(Str $70.56 询 价