go 6976 go 6976 go 6976 (also known as go-6976 and goe 6976) is a protein kinase inhibitor. it has some specificity for protein kinase c alpha and beta, and through their inhibition it is thought to induce the formation of cell junctions, and hence inhibit the invasion of urinary bladder carcinoma cells". go 6976 names preferred iupac name 3-(13-methyl-5-oxo-5,6,7,13-tetrahydro-12h-indolopyrrolocarbazol-12-yl)propanenitrile other names pd 406976 identifiers cas number 136194-77-9 3d model (jsmol) interactive image beilstein reference 8588138 chebi chebi:51913 chembl chembl302449 chemspider 3381 pubchem cid 3501 unii b9iqo7jz16 comptox dashboard (epa) dtxsid70159731 inchi inchi=1s/c24h18n4o/c1-27-17-9-4-2-7-14(17)20-21-16(13-26-24(21)29)19-15-8-3-5-10-18(15)28(12-6-11-25)23(19)22(20)27/h2-5,7-10h,6,12-13h2,1h3,(h,26,29)key: vwvyilcfsynjhf-uhfffaoysa-n smiles o=c1ncc2=c3c(n(ccc#n)c4=cc=cc=c43)=c5c(c6=cc=cc=c6n5c)=c21 properties chemical formula c24h18n4o molar mass 378.435 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references