Hydroxychloroquine sulfate

硫酸羟基氯喹

Also known as: Hydroxychloroquine Sulphate, Plaquenil, Plaquinol, Quensyl, 7-Chloro-4-[4-(N-ethyl-N-b-hydroxyethylamino)-1-methylbutylamino]quinoline sulfate, Ethanol, 2-((4-((7-chloro-4-quinolinyl)amino)pentyl)ethylamino)-, sulfate (1:1) (salt)

Hydroxychloroquine sulfate (CAS 747-36-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H28ClN3O5S and a molecular weight of 433.950 g/mol. It is also known as Hydroxychloroquine Sulphate, Plaquenil and Plaquinol. Key properties include a melting point of 240 °C, a boiling point of 516.7ºC at 760 mmHg and a flash point of 266.3ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
747-36-4
Jingsj CID
J-15602-4
Molecular Formula
C18H28ClN3O5S
Chinese Name
硫酸羟基氯喹
Molecular Weight
433.950 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point240 °C
Boiling Point516.7ºC at 760 mmHg
Flash Point266.3ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Hydroxychloroquine sulfate?

The CAS number of Hydroxychloroquine sulfate is 747-36-4.

What are the molecular formula and molecular weight of Hydroxychloroquine sulfate?

Hydroxychloroquine sulfate has molecular formula C18H28ClN3O5S and molecular weight 433.950 g/mol.

Is Hydroxychloroquine sulfate hazardous?

Hydroxychloroquine sulfate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Hydroxychloroquine sulfate (CAS 747-36-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15602-4 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.