PF-06256142

Alias: PF-06256142; PF 06256142; PF06256142
Cat No.:V4441 Purity: ≥98%
PF-06256142 is a novel, potent and selective orthosteric agonist of the D1 receptor with D1 EC50of 30 nM and D1 binding Kiof 12 nM.
PF-06256142 Chemical Structure CAS No.: 1609583-14-3
Product category: Dopamine Receptor
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
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Other Forms of PF-06256142:

  • (Rac)-PF-06256142
  • (R)-PF-06256142
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

PF-06256142 is a novel, potent and selective orthosteric agonist of the D1 receptor with D1 EC50 of 30 nM and D1 binding Ki of 12 nM. In comparison to other catechol-containing agonists and dopamine, it has lessened receptor desensitization. For the better part of four decades, the search for D1 subtype-selective agonists possessing drug-like qualities has been an ongoing challenge. As catecholamines, all known D1-selective agonists cause receptor desensitization and have fast metabolisms, which limits their use as treatments for long-term conditions like schizophrenia and Parkinson's disease. Our high-throughput screening efforts on D1 yielded a single non-catecholamine hit PF-4211 (6) that was developed into a series of potent D1 receptor agonist leads with high oral bioavailability and CNS penetration. This series' locked biaryl ring system, which causes atropisomerism, is a crucial structural component.

Biological Activity I Assay Protocols (From Reference)
Targets
Human D1 Receptor ( IC50 = 33 nM )
ln Vitro
PF-06256142, an antagonist, demonstrates IC50 values less than 5 μM at the following 4 targets: H1 (4.6 μM), M1 (4.9 μM), CB1 (2.1 μM), and Nav 1.5 (1.1 μM) [1].
PF-06256142 exhibits an IC50 for hERG of roughly 12 μM [1].
PF-06256142 demonstrates a 4.8 nM Ki for D5, which is significantly more selective than D2 (Ki>10 μM)[1].
ln Vivo
PF-06256142 shows a strong oral bioavailability (rat 85%) after oral dosing (5 mg/kg)[1].
PF-06256142 has a terminal elimination half-life (2.3 hours) in rats after being injected intravenously at a dose of 5.0 mg/kg[1].
Animal Protocol
Rat
5.0 mg/kg for i.v.; 5 mg/kg for oral (Pharmacokinetic Analysis)
Intravenous injection and oral administration
References

[1]. Discovery and Lead Optimization of Atropisomer D1 Agonists with Reduced Desensitization. J Med Chem. 2018 Nov 15.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C21H16N4O2
Molecular Weight
356.37734413147
Exact Mass
356.13
Elemental Analysis
C, 70.77; H, 4.53; N, 15.72; O, 8.98
CAS #
1609583-14-3
Related CAS #
(Rac)-PF-06256142; 1609580-97-3; (R)-PF-06256142; 1609583-15-4
Appearance
Solid powder
SMILES
CC1=C(C=CC(=C1)OC2=NC=CC3=C2C=CO3)C4=C(N=CC5=NC=CN54)C
InChi Key
HWAIAGZSWHOLLK-UHFFFAOYSA-N
InChi Code
InChI=1S/C21H16N4O2/c1-13-11-15(27-21-17-6-10-26-18(17)5-7-23-21)3-4-16(13)20-14(2)24-12-19-22-8-9-25(19)20/h3-12H,1-2H3
Chemical Name
4-[3-methyl-4-(6-methylimidazo[1,2-a]pyrazin-5-yl)phenoxy]furo[3,2-c]pyridine
Synonyms
PF-06256142; PF 06256142; PF06256142
HS Tariff Code
2934.99.03.00
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)
Solubility Data
Solubility (In Vitro)
DMSO: ~200 mg/mL (~561.2 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 5 mg/mL (14.03 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 50.0 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: ≥ 5 mg/mL (14.03 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 50.0 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.

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Solubility in Formulation 3: ≥ 5 mg/mL (14.03 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 50.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.8060 mL 14.0300 mL 28.0599 mL
5 mM 0.5612 mL 2.8060 mL 5.6120 mL
10 mM 0.2806 mL 1.4030 mL 2.8060 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.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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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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