5-Hydroxyindole-3-acetic acid 是 甲氧基肾上腺素或5-羟色胺的主要代谢产物，被用作神经内分泌肿瘤的生物标志物。它是血清素的分解产物，能够从尿液中排出。

5-Hydroxyindoleacetic acid (5HIAA) 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).

54-16-0

C10H9NO3

191.186

5-HIAA;5-羟基吲哚-3-乙酸;5-HYDROXYINDOLE-3-ACETIC ACID

Ethanol:50 mg/mL
DMSO:10 mM
Powder: -20°C for 3 years
In solvent: -80°C for 2 years