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5-Hydroxyindole-3-acetic acid

CAS No.
1321-73-9
Chemical Name:
5-Hydroxyindole-3-acetic acid
Synonyms
5-HIAA;TIMTEC-BB SBB003639;5-HYDROXYINDOLYACETIC ACID;5-Hydroxyindole-3-acetic acid;5-HYDROXY-3-INDOLEACETIC ACID;5-HYDROXYINDOLYL-3-ACETIC ACID;HYDROXYINDOLYL-3-ACETIC ACID, 5-;(5-HYDROXY-1H-INDOL-3-YL)-ACETIC ACID;2-(5-hydroxy-1H-indol-3-yl)ethanoic acid;(5-HYDROXY-1H-INDOL-3-YL)-ACETIC ACID,2-(5-hydroxy-1H-indol-3-yl)ethanoic acid
CBNumber:
CB7362912
Molecular Formula:
C10H9NO3
Molecular Weight:
191.18
MDL Number:
MFCD00005639
MOL File:
1321-73-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:54:55

5-Hydroxyindole-3-acetic acid Properties

Melting point 161-164 °C (dec.)(lit.)
storage temp. 2-8°C
solubility DMSO (Slightly), Methanol (Slightly)
form crystalline
color off-white to purple
Stability Air Sensitive, Light Sensitive
CAS DataBase Reference 1321-73-9(CAS DataBase Reference)
FDA UNII YHC763JY1P
NCI Dictionary of Cancer Terms 5-HIAA

SAFETY

Risk and Safety Statements

Safety Statements  22-24/25
WGK Germany  3
RTECS  NL3650000
8-10-23
HazardClass  IRRITANT
Toxicity mouse,LD50,intraperitoneal,1125mg/kg (1125mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY),Journal of Toxicology and Environmental Health. Vol. 1, Pg. 515, 1976.

5-Hydroxyindole-3-acetic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Chem-Impex 21820 5-Hydroxyindole-3-acetic acid ≥98%(HPLC) 1321-73-9 1G $156.23 2026-05-19 Buy
Chem-Impex 21820 5-Hydroxyindole-3-acetic acid ≥98%(HPLC) 1321-73-9 5G $765.75 2026-05-19 Buy
AHH MT-15122 5-Hydroxy-3-indoleaceticacid 99% 1321-73-9 5g $318 2021-12-16 Buy
Product number Packaging Price Buy
21820 1G $156.23 Buy
21820 5G $765.75 Buy
MT-15122 5g $318 Buy

5-Hydroxyindole-3-acetic acid Chemical Properties,Uses,Production

Uses

(5-Hydroxy-1H-indol-3-yl)acetic acid is an intermediate in the preparation of magnolol derivatives with antidepressive potentials. A biochemical marker of neuroendocrine tumor.

Uses

5-Hydroxyindole-3-acetic acid is an impurity of chlorpheniramine (C424300), an antihistaminic agent.

Definition

ChEBI: (5-hydroxyindol-3-yl)acetic acid is a member of the class of indole-3-acetic acids that is indole-3-acetic acid substituted by a hydroxy group at C-5. It has a role as a drug metabolite, a human metabolite and a mouse metabolite. It is a conjugate acid of a (5-hydroxyindol-3-yl)acetate.

5-Hydroxyindole-3-acetic acid Preparation Products And Raw materials

Raw materials

Preparation Products

5-Hydroxyindole-3-acetic acid Suppliers

Global( 61)Suppliers
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Shanghai Yaji Biological Technology Co., Ltd. 021-34661275 15301693058 yajikit@163.com China 9925 58

View Lastest Price from 5-Hydroxyindole-3-acetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-HYDROXYINDOLE-3-ACETIC ACID pictures 2025-12-24 5-HYDROXYINDOLE-3-ACETIC ACID
1321-73-9
1KG 99.0% 10000KG Shaanxi Dideu Medichem Co. Ltd
5-HYDROXYINDOLYACETIC ACID 5-HYDROXYINDOLYL-3-ACETIC ACID 5-HYDROXY-3-INDOLEACETIC ACID (5-HYDROXY-1H-INDOL-3-YL)-ACETIC ACID HYDROXYINDOLYL-3-ACETIC ACID, 5- TIMTEC-BB SBB003639 2-(5-hydroxy-1H-indol-3-yl)ethanoic acid (5-Hydroxy-1H-indol-3-yl)acetic Acid DISCONTINUED. Offer H953605 (same product) (5-HYDROXY-1H-INDOL-3-YL)-ACETIC ACID,2-(5-hydroxy-1H-indol-3-yl)ethanoic acid 5-HIAA 5-Hydroxyindole-3-acetic acid 1321-73-9 Simple Indoles Indoles Standards - 13C & 2H for GC-Mass Spectrometry