4-Methylumbelliferyl α-D-mannopyranoside is a fluorescent substrate widely used in enzymatic assays for the detection of α-mannosidase activity. Its CAS number is 28541-83-5and its molecular weight is 338.31 g/mol.
 
This substrate is commonly used in research related to lysosomal storage disorders and glycosidase deficiency diseases. For more information on the use of this substrate in research, please visit the Pubmed page at https://pubmed.ncbi.nlm.nih.gov/12689867/.