23644-17-9

Basic information

• Product Name: p-nitrophenyl 2-deoxy-α-D-xylo-hexopyranoside
• Synonyms: p-nitrophenyl 2-deoxy-α-D-xylo-hexopyranoside
• CAS NO: 23644-17-9
• Molecular Weight: 285.254
• Mol File: 23644-17-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: p-nitrophenyl 2-deoxy-α-D-xylo-hexopyranoside(CAS DataBase Reference)
• NIST Chemistry Reference: p-nitrophenyl 2-deoxy-α-D-xylo-hexopyranoside(23644-17-9)
• EPA Substance Registry System: p-nitrophenyl 2-deoxy-α-D-xylo-hexopyranoside(23644-17-9)

Safety Data

• Hazardous Substances Data: 23644-17-9(Hazardous Substances Data)

Upstream product

• 3068-32-4 1-bromo-2,3,4,6-tetra-O-acetyl-D-galactopyranose 
• 75828-75-0 1,3,4,6-Tetra-O-acetyl-2-desoxy-α/β-D-lyxo-hexopyranose 
• 25878-60-8 D-galactose pentaacetate 
• 23655-56-3 p-nitrophenyl 2-deoxy-3,4,6-tri-O-acetyl-α-D-xylo-hexopyranoside 

Downstream Products

• 61-58-5 2-deoxy-α-D-xylo-hexopyranoside 
• 100-02-7 4-nitro-phenol 

Relevant articles and documents

Hydrolytic activity of α-galactosidases against deoxy derivatives of p- nitrophenyl α-D-galactopyranoside

The four possible monodeoxy derivatives of p-nitrophenyl (PNP) α-D- galactopyranoside were synthesized, and hydrolytic activities of the α- galactosidase of green coffee bean, Mortierella vinacea and Aspergillus niger against them were elucidated. The 2- and 6-deoxy substrates were hydrolyzed by the enzymes from green coffee bean and M. vinacea, while they scarcely acted on the 3- and 4-deoxy compounds. On the other hand, A. niger α- galactosidase hydrolyzed only the 2-deoxy compound in these deoxy substrates, and the activity was very high. These results indicate that the presence of two hydroxyl groups (OH-3 and -4) is essential for the compounds to act as substrates for the enzymes of green coffee bean and M. vinacea, while the three hydroxyl groups (OH-3, -4, and -6) are necessary for the activity of the A. niger enzyme. The kinetic parameters (K(m) and V(max)) of the enzymes for the hydrolysis of PNP α-D-galactopyranoside and its deoxy derivatives were obtained from kinetic studies. (C) 2000 Elsevier Science Ltd.