(3E)-4-(1H-indol-3-yl)but-3-en-2-one ((E)-4-(1H-indol-3-yl)but-3-en-2-one) is a marine derived natural products found in Tedania (Tedania) ignis.

trans-3-Indoleacrylic acid is one of the endogenous metabolites that inhibits RSL3-induced ferroptosis and can be used to study colorectal cancer.

Methyl 5-hydroxy-1H-indole-3-carboxylate (5-hydroxy-1H-indole-3-carboxylic acid methyl ester) is a marine derived natural products found in Hyrtios erectus.

6-Bromoindole-3-acetonitrile (2-(6-bromo-1H-indol-3-yl)acetonitrile) is a marine derived natural products found in Pseudosuberites hyalinus.

N-Acetyl-5-hydroxytryptamine (O-Demethylmelatonin) , also known as Normelatonin, is the immediate precursor of melatonin. It is produced from serotonin by the enzyme aralkylamine N-acetyltransferase and is converted to melatonin by acetylserotonin O-methyltransferase. It can potently activate TrkB receptor.

3-Indolepropionic acid (Indolepropionic acid) is shown to be a powerful antioxidant with potential in the treatment for Alzheimer's disease.

2-Pyrimidinamine, 4-(5-bromo-1H-indol-3-yl)- (Meridianin C) is a marine derived natural products found in Aplidium meridianum.

5-Hydroxyindole-3-acetic acid (5-HIAA) is a breakdown product of serotonin that is excreted in the urine. Serotonin and 5HIAA are produced in excess amounts by carcinoid tumors, and levels of these substances may be measured in the urine to test for carcinoid tumors (NCI).

Indole-3-glyoxylamide (3-Indoleglyoxamide) is a marine derived natural products found in Spongosorites sp.

Ethyl6-bromo-1H-indole-3-carboxylate (Ethyl 6-Bromoindole-3-carboxylate) is a marine derived natural products found in Pleroma menoui.

3,3'-Bi[1H-indole] (3,3'-Biindole) is a marine derived natural products found in Nocardiopsis sp.

Indole has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered nitrogen-containing pyrrole ring. It can be produced by bacteria as a degradation product of the amino acid tryptophan. It occurs naturally in human feces and has an intense fecal smell. At very low concentrations, however, it has a flowery smell, and is a constituent of many flower scents (such as orange blossoms) and perfumes.

9H-Carbazole, 3,6-diiodo- (3,6-diiodocarbazole) is a marine derived natural products found in Kyrtuthrix maculans.

6-Bromoindole-3-carboxylic acid (ZINC2547985) is a marine derived natural products found in Pseudosuberites hyalinus.

4,6-Dibromoindole (ZINC13450450) is a marine derived natural products found in Glossobalanus sp.

5-Methoxyindole-3-acetic acid (5-Methoxyindoleacetic acid) is a metabolite of Melatonin and is isolated from pineal tissue.

Skatole (3-Methyl-1H-indole) is produced by intestinal bacteria. Skatole regulates intestinal epithelial cellular functions through activating aryl hydrocarbon receptors and p38.

5-Hydroxytryptamine creatinine sulfate monohydrate (Serotonin creatinine sulfate monohydrate) is a neurotransmitter.

2-(1H-Indol-3-yl)ethan-1-ol (3-(2-Hydroxyethyl)indole) is a metabolite formed in the liver after disulfiram treatment that induces sleep in humans. It is also a secondary product of alcoholic fermentation.

H-Trp-NH2.HCl ((2S)-2-amino-3-(1H-indol-3-yl)propanamide hydrochloride) is an endogenous metabolite that has been detected in various biological fluids, e.g. Urine and blood.

1H-Indole-3-Carboxylic Acid,6-Bromo-,Methyl Ester (Methyl 6-bromo-1H-indole-3-carboxylate) is a marine derived natural products found in Smenospongia sp.

6-Bromo-1H-indole-3-acetic acid methyl ester (Methyl 6-Bromoindole-3-acetate) is a marine derived natural products found in Pseudosuberites hyalinus.

Methyl 5,6-dibromo-1H-indole-3-carboxylate (5,6-Dibromo-1H-indole-3-carboxylic acid methyl ester) is a marine derived natural products found in Smenospongia sp.

3-Indoleacetic acid sodium (Heteroauxin sodium salt) is a naturally occurring plant hormone of the auxin class. It can stimulate cell elongation and division, promoting plant growth and development. However, at high concentrations, it exhibits growth inhibiting effects, including epinasty and prevention of shoot and root growth. This latter effect formed the basis for which synthetic auxins were developed as herbicides and bioregulators in agriculture.