5-Hydroxytryptophol

Also known as: 5-Hydroxyindole-3-ethanol, 3-(2-Hydroxyethyl)-1H-indol-5-ol, 2-(5-Hydroxy-1H-indol-3-yl)ethanol, 1H-Indole-3-ethanol, 5-hydroxy-, Hydroxytryptophol

5-Hydroxytryptophol (CAS 154-02-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C10H11NO2 and a molecular weight of 177.200 g/mol. Key properties include a boiling point of 435.2±30.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 217.0±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 154-02-9
Jingsj CID: J-799814-3
Molecular Formula: C₁₀H₁₁NO₂
Molecular Weight: 177.200 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	435.2±30.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	217.0±24.6 °C
Exact Mass	177.078979
PSA	56.25000
LogP	0.11
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.718

Activity & Biological Data

Target	Human Endogenous Metabolite
Additional Information	[1]. Beck O, et al. 5-hydroxytryptophol as a marker for recent alcohol intake. Addiction. 2003 Dec;98 Suppl 2:63-72.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Hydroxytryptophol?

The CAS number of 5-Hydroxytryptophol is 154-02-9.

What are the molecular formula and molecular weight of 5-Hydroxytryptophol?

5-Hydroxytryptophol has molecular formula C10H11NO2 and molecular weight 177.200 g/mol.

What are the upstream and downstream products of 5-Hydroxytryptophol?

For 5-Hydroxytryptophol, Upstream Products: 5-Hydroxyindole-3-acetic acid, 2-(5-Benzyloxy-1H-indol-3-yl)ethanol, 5-Benzyloxygramine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "5-Hydroxytryptophol (CAS 154-02-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-799814-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.