4-Fluoroindole
Also known as: 4-Fluoro-1H-indole, 1H-Indole, 4-fluoro-
4-Fluoroindole (CAS 387-43-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6FN and a molecular weight of 135.138 g/mol. Key properties include a melting point of 30-32ºC, a boiling point of 258.0±13.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 109.9±19.8 °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.
- 387-43-9
- Jingsj CID
- J-34794-4
- Molecular Formula
- C8H6FN
- Molecular Weight
- 135.138 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 30-32ºC |
|---|---|
| Boiling Point | 258.0±13.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 109.9±19.8 °C |
| Exact Mass | 135.048431 |
| PSA | 15.79000 |
| LogP | 2.19 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.646 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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-Fluoroindole?
The CAS number of 4-Fluoroindole is 387-43-9.
What are the molecular formula and molecular weight of 4-Fluoroindole?
4-Fluoroindole has molecular formula C8H6FN and molecular weight 135.138 g/mol.
Is 4-Fluoroindole hazardous?
4-Fluoroindole 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-Fluoroindole?
For 4-Fluoroindole, Upstream Products: 7-Bromo-4-fluoro-1H-indole, 2-(2-Amino-6-fluorophenyl)ethanol, 4-Fluoro-1H-indole-2-carboxylic acid; Downstream Products: 4-Fluoro-5-methoxy-1H-indole, 2-(4-Fluoro-1H-indol-3-yl)acetic acid, 2-(4-fluoro-1H-indol-3-yl)acetonitrile.
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-Fluoroindole (CAS 387-43-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34794-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.