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5-Chloro-2,3,3-trimethyl-3H-indole

Also known as: 5-Chloro-2,3,3-trimethylindolenine, 5-Chloro-2,3,3-trimethylindole, 2,3,3-Trimethyl-5-chloro-3H-indole, 5-Chloro-2,3,3-trimethyl-3H-indole, 2,3,3-Trimethylindolenine-5-chloride

5-Chloro-2,3,3-trimethyl-3H-indole (CAS 25981-83-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H12ClN and a molecular weight of 193.67300 g/mol. Key properties include a boiling point of 271.1ºC at 760 mmHg, a density of 1.083 g/mL at 25ºC(lit.) and a flash point of 117.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25981-83-3
Jingsj CID
J-1183449-4
Molecular Formula
C11H12ClN
Molecular Weight
193.67300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point271.1ºC at 760 mmHg
Density1.083 g/mL at 25ºC(lit.)
Flash Point117.8ºC
Exact Mass193.06600
PSA12.36000
LogP3.15920
Vapor Pressure0.0109mmHg at 25°C
Refractive Indexn20/D 1.594(lit.)

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-Chloro-2,3,3-trimethyl-3H-indole?

The CAS number of 5-Chloro-2,3,3-trimethyl-3H-indole is 25981-83-3.

What are the molecular formula and molecular weight of 5-Chloro-2,3,3-trimethyl-3H-indole?

5-Chloro-2,3,3-trimethyl-3H-indole has molecular formula C11H12ClN and molecular weight 193.67300 g/mol.

What are the upstream and downstream products of 5-Chloro-2,3,3-trimethyl-3H-indole?

For 5-Chloro-2,3,3-trimethyl-3H-indole, Upstream Products: 3-Methyl-2-butanone, 4-Chlorophenylhydrazine hydrochloride, 4-Chlorophenylhydrazine; Downstream Products: 5-Chloro-1,3,3-trimethyl-2-methyleneindoline.

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-Chloro-2,3,3-trimethyl-3H-indole (CAS 25981-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1183449-4 (accessed 2026-11-09).

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