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≥98% (HPLC), solid

Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


≥98% (HPLC)




H2O: <2 mg/mL
DMSO: 4 mg/mL (warming to 60 °C for 15 minutes)

SMILES string




InChI key


Gene Information

human ... TLR7(51284)

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General description

Imiquimod is a toll-like receptor (TLR)-7/8 agonist.


Imiquimod has been used as TLR7 agonist for TLR7 agonist enhancement studies. It has also been used as an NLR family, pyrin domain containing 3 (NLRP3) stimulant to treat NLRP3-FL-Btn and FLAG-ASC-FL.


200 mg in glass bottle

Biochem/physiol Actions

Imiquimod helps to induce the innate cutaneous immunity and the cellular arm of the adaptive immune response.
Imiquimod is a caspase 3 activator, which directly induces procaspase 3 cleavage to active caspase 3. Imiquimod induces apoptosis in vivo in basal cell carcinoma. Its anti-tumor activity is related to the induction of apoptosis. Imiquimod has anti-angiogenic, anti-inflammatory, anti-viral activities. Imiquimod also acts as an immune response modulator inducing the secretion of various cytokines and chemokines.

Features and Benefits

This compound is featured on the Caspases page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.


Skull and crossbones

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

More documents

Quotes and Ordering

Hayakazu Sumida et al.
Journal of immunology (Baltimore, Md. : 1950), 192(9), 4361-4369 (2014-03-26)
Psoriasis is an inflammatory skin disease with accelerated epidermal cell turnover. Neutrophil accumulation in the skin is one of the histological characteristics of psoriasis. However, the precise mechanism and role of neutrophil infiltration remain largely unknown. In this article, we
Olivier Richel et al.
The Lancet. Oncology, 14(4), 346-353 (2013-03-19)
Anal cancer is an increasing issue in HIV-positive men who have sex with men (MSM). Screening for its precursor, anal intraepithelial neoplasia (AIN), is subject of discussion. Current treatment options are suboptimum and have not been compared in a prospective
Anne Walter et al.
Nature communications, 4, 1560-1560 (2013-03-07)
Aldara is a cream used for topical treatment of non-melanoma skin cancer, and is thought to act through stimulation of anti-tumour immunity. The active ingredient, imiquimod, has been shown to stimulate toll-like receptor 7. Aldara also induces psoriasis-like lesions when
H Vinter et al.
The British journal of dermatology, 172(2), 345-353 (2014-07-02)
The application of Aldara(®) cream containing 5% imiquimod stimulates Toll-like receptor 7/8 on plasmacytoid dendritic cells, thereby producing a potent immunomodulatory effect. This has been reported to trigger psoriasis. To establish a human model of Aldara-induced psoriasis-like skin inflammation in
Poly (I: C) and hyaluronic acid directly interact with NLRP3, resulting in the assembly of NLRP3 and ASC in a cell-free system
Kaneko N, et al.
European journal of inflammation, 15(2), 85-97 (2017)

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