4-methylumbelliferyl-β-d-xylopyranoside

4-Methylumbelliferyl-β-D-xylopyranoside (4-Methylumbelliferyl-β-D-xyloside)在生物实验中展现出爆裂的稳态动力学，这支持底物4-Methylumbelliferyl-β-D-xylopyranoside 糖苷键快速水解的结论。4-Methylumbelliferyl-β-D-xylopyranoside 可用于 β- 木糖苷酶活性研究。

β-Xylosidase，Bacillus subtilis (EC 3.2.1.37)，能够从桦木木聚糖中释放还原糖，并能催化4-甲基伞形酮-β-D-纤维二糖苷和4-甲基伞形酮-β-D-吡喃葡萄糖苷的水解。该酶不具备内切木聚糖酶、阿拉伯木聚糖酶或β-葡聚糖酶的活性。β-Xylosidase在翻译后会发生糖基化修饰。