Xylan from beechwood cell wall polysaccharide 别名: Poly(β-D-xylopyranose[1→4]) Product Number :X4252 Product Brand :SIGMA CAS Number :9014-63-5 TEST: SPECIFICATION Appearance (Color): Faint Yellow to Brown Appearance (Form): Powder HPLC w/ pulsed Amperometry :≥90 % xylose after hydrolysis