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Indole-3-acetonitrile

Also known as: 3-Indoleacetonitrile, 1H-Indole-3-acetonitrile, 3-(Cyanomethyl)indole, Indolylacetonitrile, IAN, 2-(1H-Indol-3-yl)acetonitrile, 3-Indolylacetonitrile, Indoleacetonitrile, β-Indolylacetonitrile

Indole-3-acetonitrile (CAS 771-51-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8N2 and a molecular weight of 156.184 g/mol. Key properties include a melting point of 33-36 °C(lit.), a boiling point of 374.1±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 127.6±6.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
771-51-7
Jingsj CID
J-17116-6
Molecular Formula
C10H8N2
Molecular Weight
156.184 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point33-36 °C(lit.)
Boiling Point374.1±17.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point127.6±6.1 °C
Exact Mass156.068741
PSA39.58000
LogP1.37
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.673

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 Indole-3-acetonitrile?

The CAS number of Indole-3-acetonitrile is 771-51-7.

What are the molecular formula and molecular weight of Indole-3-acetonitrile?

Indole-3-acetonitrile has molecular formula C10H8N2 and molecular weight 156.184 g/mol.

Is Indole-3-acetonitrile hazardous?

Indole-3-acetonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of Indole-3-acetonitrile?

For Indole-3-acetonitrile, Upstream Products: Gramine, Indole-3-carboxaldehyde, 1,2-Dibromoethane; Downstream Products: 2-(1-Benzyl-1H-indol-3-yl)ethan-1-amine, Indole-3-carboxaldehyde, 1-Methylindole-3-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. "Indole-3-acetonitrile (CAS 771-51-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17116-6 (accessed 2026-11-06).

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