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5,6-Dichloro-1H-indole

Also known as: 5,6-Dichloroindole, 1H-Indole, 5,6-dichloro-, 5,6-dichloro-1H-indole

5,6-Dichloro-1H-indole (CAS 121859-57-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5Cl2N and a molecular weight of 186.038 g/mol. Key properties include a melting point of 152 °C, a boiling point of 331.3±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 184.3±7.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
121859-57-2
Jingsj CID
J-1384967-7
Molecular Formula
C8H5Cl2N
Molecular Weight
186.038 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point152 °C
Boiling Point331.3±22.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point184.3±7.9 °C
Exact Mass184.979904
PSA15.79000
LogP3.40
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.695

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 5,6-Dichloro-1H-indole?

The CAS number of 5,6-Dichloro-1H-indole is 121859-57-2.

What are the molecular formula and molecular weight of 5,6-Dichloro-1H-indole?

5,6-Dichloro-1H-indole has molecular formula C8H5Cl2N and molecular weight 186.038 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5,6-Dichloro-1H-indole (CAS 121859-57-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1384967-7 (accessed 2026-11-09).

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