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  2. Prostaglandin Receptor
  3. Timapiprant

Timapiprant (Synonyms: OC000459)

Cat. No.: HY-15342 Purity: 98.12%
Handling Instructions

Timapiprant (OC000459) is a potent, selective, and orally active D prostanoid receptor 2 (DP2, also known as CRTH2) antagonist. Timapiprant (OC000459) potently displaces [3H] PGD2 from human recombinant DP2 (Ki=13 nM), rat recombinant DP2 (Ki=3 nM), and human native DP2 (Ki=4 nM). Timapiprant (OC000459) inhibits mast cell activation of Th2 lymphocytes and eosinophils.

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

Timapiprant Chemical Structure

Timapiprant Chemical Structure

CAS No. : 851723-84-7

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 73 In-stock
Estimated Time of Arrival: December 31
5 mg USD 66 In-stock
Estimated Time of Arrival: December 31
10 mg USD 113 In-stock
Estimated Time of Arrival: December 31
50 mg USD 408 In-stock
Estimated Time of Arrival: December 31
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Based on 1 publication(s) in Google Scholar

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Description

Timapiprant (OC000459) is a potent, selective, and orally active D prostanoid receptor 2 (DP2, also known as CRTH2) antagonist. Timapiprant (OC000459) potently displaces [3H] PGD2 from human recombinant DP2 (Ki=13 nM), rat recombinant DP2 (Ki=3 nM), and human native DP2 (Ki=4 nM). Timapiprant (OC000459) inhibits mast cell activation of Th2 lymphocytes and eosinophils[1].

IC50 & Target

Ki: 0.013 μM (human recombinant DP2); 0.003 μM (rat recombinant DP2) and 0.004 μM (human native DP2)[1]

In Vitro

Timapiprant (OC000459) (0.0001 μM-10 μM; 5 hours) inhibits chemotaxis (IC50=0.028 μM) of human Th2 lymphocytes and cytokine production (IC50=0.019 μM) by human Th2 lymphocytes[1].
Timapiprant (OC000459) (1 μM) inhibits the activation of Th2 cells and eosinophils in response to supernatants from IgE/anti-IgE-activated human mast cells[1].
Timapiprant (OC000459) (1 nM–1000 nM; 16 hours) inhibits the anti-apoptotic effect of PGD2 on Th2 cells with an IC50 of 0.035 uM[1].

Apoptosis Analysis[1]

Cell Line: Th2 Cells
Concentration: 0.0001 μM-10 μM
Incubation Time: 16 hours
Result: Inhibited the antiapoptotic effect of PGD2.
In Vivo

Timapiprant (OC000459) (gavage; 2 mg/kg, 10 mg/kg) inhibits blood eosinophilia induced by 13,14-dihydro-15-keto-PGD2 (DK-PGD2) in Rat (ED50=0.04 mg/kg)[1].
Timapiprant (OC000459) (gavage; 0.01 mg/kg, 0.1 mg/kg, 1.0 mg/kg) inhibits airway eosinophilia in response to an aerosol of DK-PGD2 in guinea pigs (ED50=0.01 mg/kg)[1].

Clinical Trial
Molecular Weight

348.37

Formula

C₂₁H₁₇FN₂O₂

CAS No.

851723-84-7

SMILES

O=C(O)CN1C(C)=C(CC2=NC3=CC=CC=C3C=C2)C4=C1C=CC(F)=C4

Shipping

Room temperature in continental US; may vary elsewhere

Storage

4°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 4 mg/mL (11.48 mM; Need ultrasonic)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.8705 mL 14.3526 mL 28.7051 mL
5 mM 0.5741 mL 2.8705 mL 5.7410 mL
10 mM 0.2871 mL 1.4353 mL 2.8705 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 0.4 mg/mL (1.15 mM); Clear solution

*All of the co-solvents are provided by MCE.
References

Purity: 98.12%

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Timapiprant
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