(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.

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.

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.

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

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

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

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

6-Hydroxyisatin (ZINC14455608) is a marine derived natural products found in Streptomyces sp.

5-Bromo-1H-Indole-3-Carboxylic Acid Methyl Ester (Methyl 5-bromo-1H-indole-3-carboxylate) is a marine derived natural products found in Smenospongia sp.

5-Methoxy-DL-tryptophan is a molecule produced by endothelial cells to modulate inflammatory responses and protect against systemic inflammation.

3-Chloro-6-Bromo Indole (3-CHLORO-6-BROMOINDOLE) is a marine derived natural products found in Ptychodera flava.

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.

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

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.

1,7-dimethyl-1H-indole-3-carbaldehyde (ZINC14592128) is a marine derived natural products found in Lyngbya majuscula.

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

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

3-chloro-1H-indole (ZINC6117681) is a marine derived natural products found in Ptychodera flava.

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.

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

5,6-dibromo-1H-indole-3-carbaldehyde is a marine derived natural products found in Smenospongia sp.

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.

5-Methoxytryptophol (2-(5-Methoxy-1H-indol-3-yl)ethanol) is a pineal indoleamine derived from serotonin shown to be biologically active in a number of species.

H-D-Trp-OH (D-Tryptophan) is one of the 20 standard amino acids. The D-stereoisomer is occasionally found in naturally produced peptides (e.g. contryphan, the marine venom peptide).

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

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).

3-Acetylindole (3-Acetyl-1H-indole) can be used as a substituent and a probe to L-tryptophan for Sudlow site II.

9H-Carbazole, 1-methyl- (1-methyl carbazole) is a marine derived natural products found in Tedania (Tedania) ignis.

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.

5,6-dibromo-1H-indole-3-carboxylic acid (5,6-dibromo-1H-indole-3-carboxylicAcid) 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.

1,3,5-Trimethyl-1H-Pyrazole-4-Carboxylic Acid (1,3,5-trimethylpyrazole-4-carboxylic acid) is a marine derived natural products found in Cinachyrella sp.

N-methyl-1H-indole-2-carboxamide (ZINC35137534) is a marine derived natural products found in Neosartorya pseudofischeri.