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3-Cyanoindole

Also known as: 1H-Indole-3-carbonitrile, 3-Indolecarbonitrile, Indole-3-carbonitrile, 3-Indonylnitrile, MFCD00022717, RARECHEM AH BS 0093, indoline-3-carbonitrile

3-Cyanoindole (CAS 5457-28-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6N2 and a molecular weight of 142.157 g/mol. Key properties include a melting point of 179-182 °C(lit.), a boiling point of 350.0±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 121.9±5.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5457-28-3
Jingsj CID
J-38357-3
Molecular Formula
C9H6N2
Molecular Weight
142.157 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point179-182 °C(lit.)
Boiling Point350.0±15.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point121.9±5.6 °C
Exact Mass142.053101
PSA39.58000
LogP2.32
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.675

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation

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 3-Cyanoindole?

The CAS number of 3-Cyanoindole is 5457-28-3.

What are the molecular formula and molecular weight of 3-Cyanoindole?

3-Cyanoindole has molecular formula C9H6N2 and molecular weight 142.157 g/mol.

Is 3-Cyanoindole hazardous?

3-Cyanoindole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 3-Cyanoindole?

For 3-Cyanoindole, Upstream Products: Indole-3-carboxaldehyde, 1H-Indole-3-carboxaldehyde oxime, Indole; Downstream Products: 5-Bromo-1H-indole-3-carbonitrile, 6-Bromo-1H-indole-3-carbonitrile, 1H-Indole-3-carboxylic acid.

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-Cyanoindole (CAS 5457-28-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38357-3 (accessed 2026-11-09).

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