Indole is an aromatic heterocyclic organic compound. It has a bicyclic structure consisting of a six-membered benzene ring fused to a five-membered nitrogen-containing pyrrole ring.

Methyl 3-[2-[[(4R)-4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl]methylamino]ethyl]benzoate is a biochemical reagent that can be used to synthesize active compounds.

Prepro VIP (81-122), human is a prepro-vasoactive intestinal polypeptide (VIP) derived peptide, corresponding to residues 81-122.