1. Immunology/Inflammation
  2. Toll-like Receptor (TLR)
  3. CU-115


Cat. No.: HY-131945 Purity: 98.10%
Handling Instructions

CU-115 is a potent TLR8 antagonist (IC50=1.04 µM), and shows selective for TLR8 over TLR7 (IC50=>50 µM). CU-115 decreases TNF-α and IL-1β production activated by R-848 in THP-1 cells.

For research use only. We do not sell to patients.

CU-115 Chemical Structure

CU-115 Chemical Structure

CAS No. : 2471982-20-2

Size Price Stock Quantity
1 mg USD 112 In-stock
Estimated Time of Arrival: December 31
5 mg USD 384 In-stock
Estimated Time of Arrival: December 31
10 mg   Get quote  
50 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products

1 Publications Citing Use of MCE CU-115

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  • Customer Review


CU-115 is a potent TLR8 antagonist (IC50=1.04 µM), and shows selective for TLR8 over TLR7 (IC50=>50 µM). CU-115 decreases TNF-α and IL-1β production activated by R-848 in THP-1 cells[1].

IC50 & Target[1]


1.04 μM (IC50)


50 μM (IC50)

In Vitro

In endosomal and non-endosomal TLR specificity studies, Human embryonic kidney (HEK) 293 cells expressing human tolllike receptor (hTLR) gene and an inducible secreted embryonic alkaline phosphatase (SEAP) reporter gene were incubated with CU-115 for 16 hours. As a result, CU-115 displays activity for TLR7 and TLR8 at low concentrations (0.5 μM).
CU-115 does not modulate the NF-kB inhibition induced by Pam2CSK4, Pam3CSK4, Poly(I:C), LPS, R848, and Flic in HEK-293 TLR1/2, TLR2/6, TLR3, and TLR4 cells. And CU-115 inhibits TLR9 signaling at 1, 5, and 20 µM and ~10-25% inhibition.
CU-115 (5-20 µM) inhibits increases in type I IFN transcriptional activity induced by the ssRNA nucleic acid ligands 3p-hpRNA or G3-YSD in a luciferase reporter assay.
CU-115 (0.5, 1.0, 5, and 20 µM; 16 hours) is nontoxic at low concentrations (0.5 and 20 μM) and toxic at 100 μM in Hek293 TLR7 and TLR8 cells. CU-115 also is nontoxic at low concentrations (0.5 and 20 μM) and displays partial toxicity at 100 μM in THP Dual cells.
The enzyme-linked immunosorbent assay (ELISA) is performed to measure upregulation/inhibition of TNF-α in human THP-1 cells (hTHP-1). CU-115 (5-20 µM) abolishes the TNF-α production activated by R848 (1 µg/ml) in hTHP1. It also represses the expression of IL-1β in hTHP-1 cells. These results suggest that CU-115 suppresses TLR8 and TLR7 signaling pathways.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight







Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (175.68 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.7568 mL 8.7841 mL 17.5682 mL
5 mM 0.3514 mL 1.7568 mL 3.5136 mL
10 mM 0.1757 mL 0.8784 mL 1.7568 mL
*Please refer to the solubility information to select the appropriate solvent.
Purity & Documentation
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