5-Hydroxyindole-3-acetic acid
5-羟基吲哚-3-乙酸
Also known as: (5-Hydroxy-1H-indol-3-yl)acetic acid, 5-HIAA, 5-Hydroxy-3-indoleacetic acid, 5-Hydroxyindoleacetic acid, 5-Hydroxyindolyl-3-acetic acid, Hydroxyindolyl-3-acetic acid, 5-
5-Hydroxyindole-3-acetic acid (CAS 1321-73-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3 and a molecular weight of 191.18300 g/mol. It is also known as (5-Hydroxy-1H-indol-3-yl)acetic acid, 5-HIAA and 5-Hydroxy-3-indoleacetic acid. Key properties include a melting point of 161-164ºC (dec.)(lit.), a boiling point of 497.1ºC at 760mmHg, a density of 1.496g/cm3 and a flash point of 254.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1321-73-9
- Jingsj CID
- J-1074703-2
- Molecular Formula
- C10H9NO3
- Chinese Name
- 5-羟基吲哚-3-乙酸
- Molecular Weight
- 191.18300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 161-164ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 497.1ºC at 760mmHg |
| Density | 1.496g/cm3 |
| Flash Point | 254.4ºC |
Frequently Asked Questions
What is the CAS number of 5-Hydroxyindole-3-acetic acid?
The CAS number of 5-Hydroxyindole-3-acetic acid is 1321-73-9.
What are the molecular formula and molecular weight of 5-Hydroxyindole-3-acetic acid?
5-Hydroxyindole-3-acetic acid has molecular formula C10H9NO3 and molecular weight 191.18300 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Hydroxyindole-3-acetic acid (CAS 1321-73-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1074703-2 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.