3-Indoleacrylic acid
Also known as: 3-(3-Indolyl)acrylic acid, IAA, 1H-Indole-3-acrylic acid, 2-Propenoic acid, 3-(1H-indol-3-yl)-, 3-(1H-Indol-3-yl)acrylic acid, (2E)-3-(1H-indol-3-yl)acrylic acid, Indole-3-acrylic acid, beta-Indoleacrylic acid, Indolyl-3-acrylic acid, trans-3-Indoleacrylic acid, 3-Indoleacrylic acid (IAA)
3-Indoleacrylic acid (CAS 1204-06-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO2 and a molecular weight of 187.195 g/mol. Key properties include a melting point of 180-186ºC, a boiling point of 432.8±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 215.6±21.8 °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.
- 1204-06-4
- Jingsj CID
- J-1991871-6
- Molecular Formula
- C11H9NO2
- Molecular Weight
- 187.195 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 180-186ºC |
|---|---|
| Boiling Point | 432.8±20.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 215.6±21.8 °C |
| Exact Mass | 187.063324 |
| PSA | 53.09000 |
| LogP | 2.34 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.750 |
| Additional Property | freely soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Kokoette Effiong, et al. 3-Indoleacrylic acid from canola straw as a promising antialgal agent - Inhibition effect and mechanism on bloom-forming Prorocentrum donghaiense. Mar Pollut Bull. 2022 May:178:113657. |
|---|
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 3-Indoleacrylic acid?
The CAS number of 3-Indoleacrylic acid is 1204-06-4.
What are the molecular formula and molecular weight of 3-Indoleacrylic acid?
3-Indoleacrylic acid has molecular formula C11H9NO2 and molecular weight 187.195 g/mol.
Is 3-Indoleacrylic acid hazardous?
3-Indoleacrylic acid 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 3-Indoleacrylic acid?
For 3-Indoleacrylic acid, Upstream Products: Indole-3-carboxaldehyde, Malonic acid, 1-acetyl-1H-indole-3-carbaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Indoleacrylic acid (CAS 1204-06-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991871-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.