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. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. 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
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 240 °C |
|---|---|
| Boiling Point | 516.7ºC at 760 mmHg |
| Flash Point | 266.3ºC |
| Exact Mass | 433.143829 |
| PSA | 131.37000 |
| LogP | 4.28400 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
Activity & Biological Data
| Target | Antimalarial[1], TLR7/9[2] |
|---|---|
| Additional Information | [1]. Manzo C, et al. Psychomotor Agitation Following Treatment with Hydroxychloroquine. Drug Saf Case Rep. 2017 Dec;4(1):6. [2]. Lamphier M, et al. Novel small molecule inhibitors of TLR7 and TLR9: mechanism of action and efficacy in vivo. Mol Pharmacol. 2014 Mar;85(3):429-40. |
Customs & Trade Information
| HS Code | 2933499090 |
|---|---|
| Summary | 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. 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 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 and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
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 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.