(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.

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

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

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

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.

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

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).

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

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

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.

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

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

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

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

Indole-3-acetamide is a biosynthetic intermediate of indole-3-acetic acid. Indole-3-acetamide is a biosynthetic intermediate of indole-3-acetic acid, which is the most common natural plant growth hormone in the phytogrowth factor class.

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

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.

Methyl 2-(1H-indol-3-yl)acetate (Methyl indole-3-acetate) is found in apple and isolated from immature seeds of beach pea (Lathyrus maritimus), Vicia amurensis, wild soybean (Glycine soja), lobiya (Vigna catiang var. sinensis), and hyacinth bean (Dolichos lablab).

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