Agent Name

5-Hydroxyindole-3-acetic acid

CAS Number

54-16-0

Formula

C10-H9-N-O3

Major Category

Pesticides

Synonyms

Hydroxyindoleacetic acid; 5-HIAA; 5-Hydroxy-1H-indole-3-acetic acid; 5-Hydroxy-IAA; 5-Hydroxyheteroauxin; 5-Hydroxyindol-3-ylacetic acid; 5-Hydroxyindoleacetic acid; 5-Hydroxyindolylacetic acid; 5-Oxyindoleacetic acid; 1H-Indole-3-acetic acid, 5-hydroxy-; Indole-3-acetic acid, 5-hydroxy-; [ChemIDplus]

Category

Plant Growth Regulators

Description

Light red crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Indole-3-acetic acid is a naturally occurring plant-growth hormone; [EPA]

Comments

Causes somnolence in intraperitoneal lethal-dose studies of mice (LD50 = 1,125 mg/kg); [RTECS] May cause irritation; [Sigma-Aldrich MSDS] See "Indole-3-butyric acid."

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