Fluorescein di-beta-D-galactopyranoside

Description: Fluorescein di(beta-D-galactopyranoside) is a fluorogenic substrate for beta-galactosidase (lambdaem=535 nm, lambdaex=485 nm). Smiles: OC[C@H]1O[C@@H](Oc2ccc3c(Oc4cc(O[C@@H]5O[C@H](CO)[C@H](O)[C@H](O)[C@H]5O)ccc4C33OC(=O)c4ccccc34)c2)[C@H](O)[C@@H](O)[C@H]1O. References: Yang NC, et al. A fluorimetric method using fluorescein di-beta-D-galactopyranoside for quantifying the senescence-associated beta-galactosidase activity in human foreskin fibroblast Hs68 cells. Anal Biochem. 2004 Feb 15,325(2):337-43.