Exploring 12188. To explore a different substance…

1,2-Dimethyl-1H-indole-5,6-diol
 12188  C10H11NO2  177.2
 InChI=1S/C10H11NO2/c1-6-3-7-4-9(12)10(13)5-8(7)11(6)2/h3-5,12-13H,1-2H3
 JBYRAXMQDJLWBC-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 Oc1cc2c(cc1O)cc(n2C)C