4-Nitrophenyl α-L-arabinopyranoside

4-Nitrophenyl α-L-arabinopyranoside, with the CAS registry number 1223-07-0, is a synthetic glycoside compound that serves as a substrate for various enzymes, particularly α-L-arabinopyranosidases. This compound is commonly used in biochemical assays to study the activity and specificity of these enzymes, which are involved in the degradation of arabinose-containing polysaccharides. The 4-nitrophenyl moiety acts as a chromogenic leaving group, allowing for the quantitative measurement of enzyme activity through the release of 4-nitrophenol, which can be detected spectrophotometrically. The use of 4-nitrophenyl α-L-arabinopyranoside as a substrate enables researchers to investigate the enzymatic hydrolysis of arabinose glycosidic bonds and to characterize the properties of α-L-arabinopyranosidases from different sources. This compound is a valuable tool in the field of glycochemistry and enzymology.