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Purity: ≥98%
PF-4840154 is a novel, potent, selective agonist of the rat and human TrpA1 channel with EC50s of 97 and 23 nM, respectively. TrpA1 is an ion channel involved in nociceptive and inflammatory pain. It is implicated in the detection of chemical irritants through covalent binding to a cysteine-rich intracellular region of the protein. PF-4840154 was identified from an HTS of the Pfizer chemical collection, a class of pyrimidines emerged as a non-reactive, non-covalently binding family of agonists of the rat and human TrpA1 channel. Given the issues identified with the reference agonist Mustard Oil (MO) in screening, a new, non-covalently binding agonist was optimized and proved to be a superior agent to MO for screening purposes. Compound 16a (PF-4840154) is a potent, selective agonist of the rat and human TrpA1 channel and elicited TrpA1-mediated nocifensive behaviour in mouse.
| ln Vivo |
Mice treated intraplantarly with PF-4840154 (30 nmol) exhibit TrpA1-mediated nociceptive behavior [1].
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| Animal Protocol |
Animal/Disease Models: Female CD1 mice (25-30g) (TrpA1+/+ mice) [1]
Doses: 30 nmol Route of Administration: Intraplantar (i.pl) Injection Experimental Results: Intense licking behavior was induced. |
| References |
[1]. Ryckmans T, et al. Design and pharmacological evaluation of PF-4840154, a non-electrophilic reference agonist of the TrpA1 channel. Bioorg Med Chem Lett. 2011 Aug 15;21(16):4857-4859.
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| Molecular Formula |
C26H38N6O2
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|---|---|
| Molecular Weight |
466.61892
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| CAS # |
1332708-14-1
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| SMILES |
O=C(C1=CN=C(N2CCN(CC3COCCC3)CC2)N=C1NCC(C)C)NCC4=CC=CC=C4
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| InChi Key |
PPANZCQXFYBGHN-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C26H38N6O2/c1-20(2)15-27-24-23(25(33)28-16-21-7-4-3-5-8-21)17-29-26(30-24)32-12-10-31(11-13-32)18-22-9-6-14-34-19-22/h3-5,7-8,17,20,22H,6,9-16,18-19H2,1-2H3,(H,28,33)(H,27,29,30)
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| Chemical Name |
N-benzyl-4-(2-methylpropylamino)-2-[4-(oxan-3-ylmethyl)piperazin-1-yl] pyrimidine-5-carboxamide
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| Synonyms |
PF-4840154; PF 4840154; PF4840154.
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO : ~50 mg/mL (~107.15 mM)
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.36 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (5.36 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (5.36 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.1431 mL | 10.7154 mL | 21.4307 mL | |
| 5 mM | 0.4286 mL | 2.1431 mL | 4.2861 mL | |
| 10 mM | 0.2143 mL | 1.0715 mL | 2.1431 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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