Resiquimod

Also known as: R848, S28463, 1-(4-Amino-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl)-2-methylpropan-2-ol, 1-[4-Amino-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl]-2-methyl-2-propanol, 4-Amino-2-(ethoxymethyl)-α,α-dimethyl-1H-imidazo[4,5-c]quinoline-1-ethanol, 1H-imidazo[4,5-c]quinoline-1-ethanol, 4-amino-2-(ethoxymethyl)-α,α-dimethyl-

Resiquimod (CAS 144875-48-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C17H22N4O2 and a molecular weight of 314.382 g/mol. Key properties include a melting point of 193 °C, a boiling point of 553.6±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 288.6±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 144875-48-9
Jingsj CID: J-1973016-6
Molecular Formula: C₁₇H₂₂N₄O₂
Molecular Weight: 314.382 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	193 °C
Boiling Point	553.6±50.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	288.6±30.1 °C
Exact Mass	314.174286
PSA	86.19000
LogP	2.15
Vapor Pressure	0.0±1.6 mmHg at 25°C
Refractive Index	1.635

Activity & Biological Data

Additional Information	[1]. Sachan S, et al. Adjuvant potential of resiquimod with inactivated Newcastle disease vaccine and its mechanism of action in chicken. Vaccine. 2015 Aug 26;33(36):4526-32. [2]. Brugnolo F, et al. The novel synthetic immune response modifier R-848 (Resiquimod) shifts human allergen-specific CD4+ TH2 lymphocytes into IFN-gamma-producing cells. J Allergy Clin Immunol. 2003 Feb;111(2):380-8. [3]. Zhou ZX, et al. Immune effects of R848: evidences that suggest an essential role of TLR7/8-induced, Myd88- and NF-κB-dependent signaling in the antiviral immunity of Japanese flounder (Paralichthys olivaceus). Dev Comp Immunol. 2015 Mar;49(1):113-20.

Additional Information

[1]. Sachan S, et al. Adjuvant potential of resiquimod with inactivated Newcastle disease vaccine and its mechanism of action in chicken. Vaccine. 2015 Aug 26;33(36):4526-32. [2]. Brugnolo F, et al. The novel synthetic immune response modifier R-848 (Resiquimod) shifts human allergen-specific CD4+ TH2 lymphocytes into IFN-gamma-producing cells. J Allergy Clin Immunol. 2003 Feb;111(2):380-8. [3]. Zhou ZX, et al. Immune effects of R848: evidences that suggest an essential role of TLR7/8-induced, Myd88- and NF-κB-dependent signaling in the antiviral immunity of Japanese flounder (Paralichthys olivaceus). Dev Comp Immunol. 2015 Mar;49(1):113-20.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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 Resiquimod?

The CAS number of Resiquimod is 144875-48-9.

What are the molecular formula and molecular weight of Resiquimod?

Resiquimod has molecular formula C17H22N4O2 and molecular weight 314.382 g/mol.

What are the upstream and downstream products of Resiquimod?

For Resiquimod, Upstream Products: Carbon, 1-[(3-amino-2-chloroquinolin-4-yl)amino]-2-methylpropan-2-ol, 2,4-Dihydroxy-3-nitroquinoline; Downstream Products: Triacetin.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Resiquimod (CAS 144875-48-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973016-6 (accessed 2026-11-09).

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