4-Hydroxyindole
Also known as: 1H-Indol-4-ol, Indol-4-ol, 4-Indolol
4-Hydroxyindole (CAS 2380-94-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NO and a molecular weight of 133.147 g/mol. Key properties include a melting point of 97-99 °C(lit.), a boiling point of 343.2±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 161.4±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2380-94-1
- Jingsj CID
- J-19106-0
- Molecular Formula
- C8H7NO
- Molecular Weight
- 133.147 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 97-99 °C(lit.) |
|---|---|
| Boiling Point | 343.2±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 161.4±20.4 °C |
| Exact Mass | 133.052765 |
| PSA | 36.02000 |
| LogP | 1.41 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.739 |
| Additional Property | slightly soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Nenad Manevski, et al. Glucuronidation of psilocin and 4-hydroxyindole by the human UDP-glucuronosyltransferases. Drug Metab Dispos. 2010 Mar;38(3):386-95. |
|---|
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 4-Hydroxyindole?
The CAS number of 4-Hydroxyindole is 2380-94-1.
What are the molecular formula and molecular weight of 4-Hydroxyindole?
4-Hydroxyindole has molecular formula C8H7NO and molecular weight 133.147 g/mol.
Is 4-Hydroxyindole hazardous?
4-Hydroxyindole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 4-Hydroxyindole?
For 4-Hydroxyindole, Upstream Products: 2-(Benzyloxy)-6-nitrophenylacetonitrile, 1,5,6,7-Tetrahydro-4H-indol-4-one, Indoline-4-ol; Downstream Products: 4-Methoxyindole, 4-Methoxy-1H-indole-3-carbaldehyde, 5-Methyl-1H-indol-4-ol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hydroxyindole (CAS 2380-94-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19106-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.