Toll-like receptors (TLRs) are a class of proteins that play a key role in the innate immune system. They are single, membrane-spanning, non-catalytic receptors usually expressed in sentinel cells such as macrophages and dendritic cells, that recognize structurally conserved molecules derived from microbes. Once these microbes have breached physical barriers such as the skin or intestinal tract mucosa, they are recognized by TLRs, which activate immune cell responses. The TLRs include TLR1, TLR2, TLR3, TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, TLR10, TLR11, TLR12, and TLR13. Toll-Like Receptors (TLRs) play a critical role in the early innate immune response to invading pathogens by sensing microorganism and are involved in sensing endogenous danger signals. TLRs are evolutionarily conserved receptors are homologues of the Drosophila Toll protein, discovered to be important for defense against microbial infection. TLRs recognize highly conserved structural motifs known as pathogen-associated microbial patterns (PAMPs), which are exclusively expressed by microbial pathogens.


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TLR7-agonist-1

TLR7-agonist-1 is a potent and selective Toll-like Receptor 7 (TLR7) agonist with a LEC of 0.4 μM.

  • CAS Number: 1642857-69-9
  • MF: C17H16N6O2
  • MW: 336.13
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CAY10614

CAY10614 is a potent TLR4 antagonist. CAY10614 inhibits the lipid A-induced activation of TLR4, with an IC50 of 1.675 μM. CAY10614 can improve survival of mice in lethal endotoxin shock model[1][2].

  • CAS Number: 1202208-36-3
  • MF: C42H78INO2
  • MW: 755.979
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TLR7/8 agonist 4 TFA

TLR7/8 agonist 4 TFA (compound 41) is a potent TLR7/8 agonist. TLR7/8 agonist 4 has anti-cancer activity[1].

  • CAS Number: 2388520-34-9
  • MF: C20H25F3N6O2
  • MW: 438.45
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Atractylenolide I

Atractylenolide I is a sesquiterpene derived from the rhizome of Atractylodes macrocephala, possesses diverse bioactivities, such as neuroprotective, anti-allergic, anti-inflammatory and anticancer properties. Atractylenolide I reduces protein levels of phosphorylated JAK2 and STAT3 in A375 cells, and acts as a TLR4-antagonizing agent.

  • CAS Number: 73069-13-3
  • MF: C15H18O2
  • MW: 230.302
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: 405.0±44.0 °C at 760 mmHg
  • Melting Point: 121-123 °C
  • Flash Point: 170.8±25.9 °C

Paquinimod

Paquinimod is a S100A9 inhibitor, which prevents S100A9 binding to TLR-4.

  • CAS Number: 248282-01-1
  • MF: C21H22N2O3
  • MW: 350.41100
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.267g/cm3
  • Boiling Point: 487.259ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 248.486ºC

ODN 105870

ODN 105870, a G-modified inhibitory oligonucleotide (INH-ODN), is a selective TLR7 inhibitor. ODN 105870 can be uesd for inflammatory immune responses research[1].

  • CAS Number: 1965342-40-8
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Pam3CSK4 TFA

Pam3CSK4 TFA is a toll-like receptor 1/2 (TLR1/2) agonist with an EC50 of 0.47 ng/mL for human TLR1/2[1].

  • CAS Number: 112208-01-2
  • MF: C87H159F9N10O19S
  • MW: 1852.33
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MMG 11

MMG-11 is a potent and selective human TLR2 antagonist. MMG-11 inhibits both TLR2/1 and TLR2/6 signaling with an IC50 of 1.7 µM for Pam3CSK4-induced hTLR2/1 and 5.7 µM for Pam2CSK4-induced hTLR2/6 responses[1].

  • CAS Number: 313254-94-3
  • MF: C15H14O7
  • MW: 306.27
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Resiquimod-d5

Resiquimod-d5 (R848-d5) is deuterium labeled Resiquimod. Resiquimod is a Toll-like receptor 7 and 8 (TLR7/TLR8) agonist that induces the upregulation of cytokines such as TNF-α, IL-6 and IFN-α[1][2].

  • CAS Number: 2252319-44-9
  • MF: C17H17D5N4O2
  • MW: 319.41
  • Catalog: HCV
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

hydroxychloroquine

Hydroxychloroquine is a synthetic antimalarial agent which can also inhibit Toll-like receptor 7/9 (TLR7/9) signaling. Hydroxychloroquine is efficiently inhibits SARS-CoV-2 infection in vitro[1][2][3].

  • CAS Number: 118-42-3
  • MF: C18H26ClN3O
  • MW: 335.87200
  • Catalog: SARS-CoV
  • Density: 1.176 g/cm3
  • Boiling Point: 516.7ºC at 760 mmHg
  • Melting Point: 89-91°
  • Flash Point: 266.3ºC

TLR7/8 agonist 4

TLR7/8 agonist 4 (compound 41) is a potent TLR7/8 agonist. TLR7/8 agonist 4 has anti-cancer activity[1].

  • CAS Number: 2388520-33-8
  • MF: C18H24N6
  • MW: 324.42
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ODN 105871

ODN 105871, a G-modified inhibitory oligonucleotide (INH-ODN), is a selective TLR7 inhibitor. ODN 105871 can be uesd for inflammatory immune responses research[1].

  • CAS Number: 1965342-41-9
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Pam3Cys-Ser-(Lys)4

Pam3CSK4 is a toll-like receptor 1/2 (TLR1/2) agonist with an EC50 of 0.47 ng/mL for human TLR1/2[1].

  • CAS Number: 112208-00-1
  • MF: C81H156N10O13S
  • MW: 1619.61000
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.054g/cm3
  • Boiling Point: 1408ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 805.3ºC

Robinin

Robinin is present in flavonoid fraction of Vigna unguiculata leaf. Robinin inhibits upregulated expression of TLR2 and TLR4. Robinin ameliorates oxidized low density lipoprotein (Ox-LDL) induced inflammatory insult through TLR4/NF-κB pathway[1].

  • CAS Number: 301-19-9
  • MF: C33H40O19
  • MW: 740.659
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 1064.4±65.0 °C at 760 mmHg
  • Melting Point: 194-195ºC
  • Flash Point: 335.7±27.8 °C

Eritoran

Eritoran is a Toll-like receptor 4 (TLR4) antagonist. Eritoran protects mice against lethal influenza virus infection, such as Ebola virus (EBOV), Marburg virus (MARV). Eritoran decreases the level of granulocytosis, may alleviate the severity of the "cytokine storm". Eritoran inhibits pathogenesis of filovirus infection[1].

  • CAS Number: 185955-34-4
  • MF: C66H122N2Na4O19P2
  • MW: 1401.58000
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.14
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Guretolimod

Guretolimod is a Toll-like receptor 7 (TLR7) agonist[1].

  • CAS Number: 1488364-57-3
  • MF: C24H34F3N5O4
  • MW: 513.55
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CU-T12-9

CU-T12-9 is a specific TLR1/2 agonist with EC50 of 52.9 nM in HEK-Blue hTLR2 SEAP assay. CU-T12-9 activates both the innate and the adaptive immune systems. CU-T12-9 selectively activates the TLR1/2 heterodimer, not TLR2/6. CU-T12-9 signals through NF-κB and invokes an elevation of the downstream effectors TNF-α, IL-10, and iNOS[1].

  • CAS Number: 1821387-73-8
  • MF: C17H13F3N4O2
  • MW: 362.306
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 524.3±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 270.9±30.1 °C

ODN 21595

ODN 21595 is a Guanine-Modified TLR7 and TLR9 inhibitor. ODN 21595 inhibits the release of IFN-α and IL-6 with no cytotoxic. ODN 21595 reduces the expression of CD86 and HLA-DR. ODN 21595 has the potential for the research of systemic lupus erythematosus (SLE)[1].

  • CAS Number: 1964506-28-2
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Imiquimod maleate

Imiquimod maleate is an immune response modifier that acts as a toll-like receptor 7agonist.

  • CAS Number: 896106-16-4
  • MF: C18H20N4O4
  • MW: 356.376
  • Catalog: Autophagy
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Gardiquimod trifluoroacetate

Gardiquimod trifluoroacetate is a specific TLR7 agonist which can also inhibit HIV-1 reverse transcriptase.

  • CAS Number: 1159840-61-5
  • MF: C21H25F6N5O5
  • MW: 541.44
  • Catalog: HIV
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

CL097

CL097, a potent TLR7/8 agonist, induces pro-inflammatory cytokines in macrophages[1]. CL097 induces NADPH oxidase priming, resulting in an increase of the fMLF-stimulated ROS production[2].

  • CAS Number: 1026249-18-2
  • MF: C13H14N4O
  • MW: 242.28
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

1-(4-(aminomethyl)benzyl)-2-butyl-1H-imidazo[4,5-c]quinolin-4-ylamine

TLR7/8 agonist 1 is a toll-like receptor (TLR7)/TLR8 dual-agonistic imidazoquinoline.

  • CAS Number: 1258457-59-8
  • MF: C22H25N5
  • MW: 359.46700
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TMX-201

TMX-201 is a TLR7 ligand-phospholipid conjugate. TMX-201 shows potent immune stimulatory activity. TMX-201 can be used for breast cancer and melanoma research[1].

  • CAS Number: 1149339-78-5
  • MF: C57H93N6O12P
  • MW: 1085.36
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Polvitolimod

Polvitolimod is a TLR7 agonist for treatment of cancer and infectious disease.

  • CAS Number: 2389988-81-0
  • MF: C13H14FN5O4
  • MW: 323.28
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ODN 2216

ODN 2216 is a TLR9 (toll-like receptor 9) ligand or agonist. ODN 2216 induces high amounts of IFN-α and IFN-β. ODN 2216 induces IFN-α by pDC (plasmacytoid DC) and IL-12 (p40) production by DC (dendritic cells). ODN 2216 stimulates IFN-γ production in peripheral blood mononuclear cells (PBMC), which is indirect and mediated by IFN-α/β. ODN 2216 can activate NK cells and promote IFN-γ production of TCR-triggered CD4+ T cells[1][2][3][4].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ODN 20844

ODN 20844, a guanine-modified inhibitory oligonucleotide (INH-ODN), is a TLR7 and TLR9 (Toll-like receptor) inhibitor, and its parent is INH-ODN 2088. ODN 20844 disrupts TLR7- and TLR9-mediated immune cell immune responses. ODN 20844 sequence: 5'-TCCTGGCGc7GGGAAGT-3'[1].

  • CAS Number: 1964506-29-3
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ODN 1668

ODN 1668, a class B CpG ODN (oligodeoxynucleotide), is a TLR-9 agonist. ODN 1668 is an immunostimulatory sequence and can be used as vaccine adjuvant. Sequence: 5'-tccatgacgttcctgatgct-3’[1][2].

  • CAS Number: 1186063-66-0
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GSK1795091

GSK1795091 (CRX-601), an immunologic stimulator, is a synthetic TLR4 agonist. Antitumor activity. GSK1795091 can be used as a vaccine adjuvant to enhance both mucosal and systemic immunity to influenza virus vaccines[1][2].

  • CAS Number: 1233589-81-5
  • MF: C81H157N2O16P
  • MW: 1446.09
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TLR8 agonist 2

TLR8 agonist 2 is a potent and selective TLR8 agonist with an EC50 of 3 nM for human TLR8. TLR8 agonist 2 shows less active against human TLR7 (EC50 of 33.33 μM)[1].

  • CAS Number: 2412937-64-3
  • MF: C16H22N8
  • MW: 326.40
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(1E,4E)-ethyl 2-amino-8-(3-cyanophenyl)-3H-benzo[b]azepine-4-carboxylate

TL8-506 is a specific TLR8 agonist with an EC50 of 30 nM. TL8-506 can be used for the research of tuberculosis and autoimmune diseases[1].

  • CAS Number: 1268163-15-0
  • MF: C20H17N3O2
  • MW: 331.36800
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A