Try searching for...
SCFBio, IIT Delhi
Formula: C19H19NO3 | Mol. Weight: 309.40 g/mol
IUPAC: 2-hydroxy-8-methoxy-1-(3-methylbut-2-enyl)-9H-carbazole-3-carbaldehyde
CC(=CCC1=C(C(=CC2=C1NC3=C2C=CC=C3OC)C=O)O)C