120583-41-7 ，2-氯-4-硝基苯基-β-D-吡喃乳糖苷, Gal-b-1,4-Glc-b-CNP ,2-Chloro-4-nitrophenyl b-D-lactoside,CAS:120583-41-7

120583-41-7 ，2-氯-4-硝基苯基-β-D-吡喃乳糖苷, Gal-b-1,4-Glc-b-CNP,
2-Chloro-4-nitrophenyl b-D-lactoside,
CAS:120583-41-7
C18H24ClNO13 / 497.83
MFCD00037473

2-Chloro-4-nitrophenyl b-D-lactoside

2-氯-4-硝基苯基-β-D-吡喃乳糖苷,

2-Chloro-4-nitrophenyl b-D-galactopyranoside is a chromogenic enzyme substrate used to study the activity of beta-lactoside. It produces a yellow color when cleaved by the enzyme, making it a useful tool in enzyme assays and screening experiments.

Highly sensitive lactosidase, yellow coloured probe that releases the product 2-chloro-4-nitrophenol (CNP). Can be monitored spectrophotometrically at 405 nm. The rate of formation of 2-chloro-4-nitrophenol is directly proportional to the lactosidase activity in the sample. The pKa of CNP is approximately 5.5.

CAS Number	120583-41-7
Product Name	2-Chloro-4-nitrophenyl-beta-D-lactoside
IUPAC Name	(2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6S)-6-(2-chloro-4-nitrophenoxy)-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
Molecular Formula	C18H24ClNO13
Molecular Weight	497.83 g/mol
InChI	InChI=1S/C18H24ClNO13/c19-7-3-6(20(28)29)1-2-8(7)30-17-15(27)13(25)16(10(5-22)32-17)33-18-14(26)12(24)11(23)9(4-21)31-18/h1-3,9-18,21-27H,4-5H2/t9-,10-,11+,12+,13-,14-,15-,16-,17-,18+/m1/s1
InChI Key	RFGBZYLCQCJGOG-MUKCROHVSA-N
SMILES	C1=CC(=C(C=C1[N+](=O)[O-])Cl)OC2C(C(C(C(O2)CO)OC3C(C(C(C(O3)CO)O)O)O)O)O
Canonical SMILES	C1=CC(=C(C=C1[N+](=O)[O-])Cl)OC2C(C(C(C(O2)CO)OC3C(C(C(C(O3)CO)O)O)O)O)O
Isomeric SMILES	C1=CC(=C(C=C1[N+](=O)[O-])Cl)O[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O)O)O)O