Cat. No.: HY-18137

PF-04995274

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PF-04995274 is a potent, high-affinity, orally active and partial serotonin 4 receptor (5-HT₄R) agonist. PF-04995274 has an EC₅₀ range of 0.26-0.47 nM for human 5-HT_4A/4B/4D/4E (K_i range of 0.15-0.46 nM), and has an EC₅₀ range of 0.59-0.65 nM for rat 5-HT_4S/4L/4E (K_i of 0.30 nM for rat 5-HT_4S). PF-04995274 is brain penetrant and can be used for cognitive disorders associated with Alzheimer's disease.

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

Purity: 99.75%
CAS No.: 1331782-27-4
Formula: C₂₃H₃₂N₂O₆
Molecular Weight:432.51

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year

PF-04995274 Chemical Structure

CAS No.: 1331782-27-4

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- IC₅₀ & Target
- Cellular Effect
- In Vitro
- In Vivo
- Clinical Trial
Chemical Information
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

IC₅₀ & Target^[1]^[2]^[3]

5-HT₄ Receptor

All 5-HT Receptor Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
CHO	EC₅₀	1.3 nM Compound: PF-04995274	Agonist activity at human 5HT4e receptor expressed in CHO cells assessed as cAMP level after 4 hrs by luciferase reporter gene assay Agonist activity at human 5HT4e receptor expressed in CHO cells assessed as cAMP level after 4 hrs by luciferase reporter gene assay	[PMID: 26363507]
HEK293	EC₅₀	0.2 nM Compound: 2d	Partial agonist activity at human 5HT4D receptor expressed in HEK293 cells assessed as cAMP production after 30 mins by HTRF assay Partial agonist activity at human 5HT4D receptor expressed in HEK293 cells assessed as cAMP production after 30 mins by HTRF assay	[PMID: 22974325]
HEK293	EC₅₀	0.26 nM Compound: 2d	Agonist activity at human 5HT4E receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay Agonist activity at human 5HT4E receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay	[PMID: 22974325]
HEK293	EC₅₀	0.36 nM Compound: 2d	Agonist activity at human 5HT4B receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay Agonist activity at human 5HT4B receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay	[PMID: 22974325]
HEK293	EC₅₀	0.47 nM Compound: 2d	Agonist activity at human 5HT4A receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay Agonist activity at human 5HT4A receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay	[PMID: 22974325]
HEK293	EC₅₀	0.59 nM Compound: 2d	Agonist activity at rat 5HT4S receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay Agonist activity at rat 5HT4S receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay	[PMID: 22974325]
HEK293	EC₅₀	0.62 nM Compound: 2d	Agonist activity at rat 5HT4E receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay Agonist activity at rat 5HT4E receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay	[PMID: 22974325]
HEK293	EC₅₀	0.65 nM Compound: 2d	Agonist activity at rat 5HT4L receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay Agonist activity at rat 5HT4L receptor expressed in HEK293 cells assessed as increase in cAMP production after 30 mins by HTRF assay	[PMID: 22974325]

In Vitro

PF-04995274 has EC₅₀ values of 0.47 nM, 0.36 nM, 0.37 nM, 0.26 nM, 0.59 nM, 0.65 nM and 0.62 nM for human 5-HT_4A/4B/4D/4E and rat 5-HT_4S/4L/4E, respectively. PF-04995274 has K_i values of 0.36 nM, 0.46 nM, 0.15 nM, 0.32 nM and 0.3nM for human 5-HT_4A/4B/4D/4E and rat 5-HT_4S, respectively^[3].

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

In Vivo

PF-04995274 (3-10 mg/kg; intravenous injection; for 17 days; male 129S6/SvEv mice) treatment results in prophylactic efficacy by attenuating learned fear and decreasing stress-induced depressive-like behavior^[1].

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

Animal Model:

Male 129S6/SvEv mice (7-8 weeks) treated with contextual fear conditioning (CFC) and forced swim test (FST)^[1]
Dosage:

3 mg/kg, 10 mg/kg
Administration:

Intravenous injection; for 17 days
Result:

Attenuated learned fear and decreased stress-induced depressive-like behavior.

Clinical Trial

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 1331782-27-4
Appearance Solid
Molecular Weight 432.51
Formula C₂₃H₃₂N₂O₆
Color White to off-white
SMILES

OC1(CN2CCC(COC3=NOC4=CC=CC(O[C@H]5COCC5)=C34)CC2)CCOCC1
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (231.21 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.3121 mL

11.5604 mL

23.1209 mL

5 mM

0.4624 mL

2.3121 mL

4.6242 mL

10 mM

0.2312 mL

1.1560 mL

2.3121 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Molarity Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

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

Solubility: ≥ 2.5 mg/mL (5.78 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 2.5 mg/mL (5.78 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 2.5 mg/mL (5.78 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (277 KB)
SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Chen BK, et al. Prophylactic efficacy of 5-HT4R agonists against stress. Neuropsychopharmacology. 2019 Oct 10. [Content Brief]

[2]. Grimwood S, et al. Translational receptor occupancy for the 5-HT4 partial agonist PF-04995274 in rats, non-human primates and healthy volunteers. Alzheimer’s Dement: J Alzheimer’s Assoc. 2011;7:S653.

[3]. Timothy Nicholas1, et al. Systems pharmacology modeling in neuroscience: Prediction and outcome of PF-04995274, a 5-HT4 partial agonist, in a clinical scopolamine impairment trial. Advances in Alzheimer's Disease. Vol.2 No.3(2013).

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.3121 mL	11.5604 mL	23.1209 mL	57.8021 mL
	5 mM	0.4624 mL	2.3121 mL	4.6242 mL	11.5604 mL
	10 mM	0.2312 mL	1.1560 mL	2.3121 mL	5.7802 mL
	15 mM	0.1541 mL	0.7707 mL	1.5414 mL	3.8535 mL
	20 mM	0.1156 mL	0.5780 mL	1.1560 mL	2.8901 mL
	25 mM	0.0925 mL	0.4624 mL	0.9248 mL	2.3121 mL
	30 mM	0.0771 mL	0.3853 mL	0.7707 mL	1.9267 mL
	40 mM	0.0578 mL	0.2890 mL	0.5780 mL	1.4451 mL
	50 mM	0.0462 mL	0.2312 mL	0.4624 mL	1.1560 mL
	60 mM	0.0385 mL	0.1927 mL	0.3853 mL	0.9634 mL
	80 mM	0.0289 mL	0.1445 mL	0.2890 mL	0.7225 mL
	100 mM	0.0231 mL	0.1156 mL	0.2312 mL	0.5780 mL

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PF-04995274

Orally Active Compound Library

Neurotransmitter Receptor Compound Library

Anti-Alzheimer's Disease Compound Library

Neurodegenerative Disease-related Compound Library

Anti-Obesity Compound Library

5-HT Receptor Compound Library

Coagulation and Anti-coagulation Compound Library

Heterocyclic Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Activators Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Clinical Compound Library Plus

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Lactylation Compound Library

GPCR/G Protein Compound Library

Neuronal Signaling Compound Library

Clinical Compound Library

CNS-Penetrant Compound Library

All 5-HT Receptor Isoforms

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

PF-04995274

Orally Active Compound Library

Neurotransmitter Receptor Compound Library

Anti-Alzheimer's Disease Compound Library

Neurodegenerative Disease-related Compound Library

Anti-Obesity Compound Library

5-HT Receptor Compound Library

Coagulation and Anti-coagulation Compound Library

Heterocyclic Compound Library

Membrane Protein-targeted Compound Library

Membrane Receptor-targeted Compound Library

Highly Selective Activators Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Clinical Compound Library Plus

Bioactive Compound Library

High-Throughput Bioactive Compound Library

Lactylation Compound Library

GPCR/G Protein Compound Library

Neuronal Signaling Compound Library

Clinical Compound Library

CNS-Penetrant Compound Library

All 5-HT Receptor Isoforms

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

PF-04995274 Related Classifications

HY-18137 Related Classifications