beta-Naphthylbeta-D-GlucopyranosideTetraacetate

2-Naphthyl 2,3,4,6-tetra-O-acetyl-b-D-glucopyranoside 2-Naphthyl 2,3,4,6-tetra-O-acetyl-b-D-glucopyranoside (NAG tetra acetate) is a chromogenic enzyme substrate commonly used in the detection of beta-galactosidase activity. Upon hydrolysis by the enzyme, it produces a yellow product that can be detected by spectrophotometry or visually. It is frequently used in bacterial assays to monitor gene expression or as a tool for screening potential inhibitors of the enzyme. CAS Number 14581-89-6 Product Name [(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-naphthalen-2-yloxyoxan-2-yl]methyl acetate IUPAC Name [(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-naphthalen-2-yloxyoxan-2-yl]methyl acetate Molecular Formula C??H??O?? Molecular Weight 474.46 InChI InChI=1S/C24H26O10/c1-13(25)29-12-20-21(30-14(2)26)22(31-15(3)27)23(32-16(4)28)24(34-20)33-19-10-9-17-7-5-6-8-18(17)11-19/h5-11,20-24H,12H2,1-4H3/t20-,21-,22+,23-,24-/m1/s1 SMILES CC(=O)OCC1C(C(C(C(O1)OC2=CC3=CC=CC=C3C=C2)OC(=O)C)OC(=O)C)OC(=O)C Synonyms 2-Naphthalenyl ?-D-Glucopyranoside Tetraacetate; 2-Naphthyl ?-D-Glucopyranoside Tetraacetate;