has role indolyl carbohydrate beta-D-galactoside organochlorine compound organobromine compound D-aldohexose derivative chromogenic compound 5-bromo-4-chloro-3-indolyl beta-D-galactoside 406.977 408.62900 5-bromo-4-chloro-1H-indol-3-yl beta-D-galactopyranoside 5-bromo-4-chloro-3-indolyl beta-galactoside 5-bromo-4-chloroindol-3-yl-beta-D-galactopyranoside An indolyl carbohydrate that is the beta-D-galactoside of 3-hydroxy-1H-indole in which the indole moiety is substituted at positions 4 and 5 by chlorine and bromine, respectively. It is used to test for the presence of an enzyme, beta-galactosidase, which cleaved the glycosidic bond to give 5-bromo-4-chloro-3-hydroxy-1H-indole, which immediately dimerises to give an intensely blue product. BCIG C14H15BrClNO6 CAS:7240-90-6 CHEBI:75055 InChI=1S/C14H15BrClNO6/c15-5-1-2-6-9(10(5)16)7(3-17-6)22-14-13(21)12(20)11(19)8(4-18)23-14/h1-3,8,11-14,17-21H,4H2/t8-,11+,12+,13-,14-/m1/s1 Indoxyl-Gal OPIFSICVWOWJMJ-AEOCFKNESA-N PMID:16497398 PMID:1725950 PMID:20150093 PMID:21357066 PMID:2139935 PMID:22301646 PMID:22639266 PMID:22929213 PMID:8373598 PMID:8431289 Reaxys:1552604 Wikipedia:X-gal X-Gal X-gal [H][C@]1(O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)Oc1c[nH]c2ccc(Br)c(Cl)c12 chebi_ontology