2. GPCR/G Protein
  3. P2Y Receptor
  4. BPTU

BPTU (BMS-646786) is a non-nucleotide P2Y1 receptor allosteric antagonist with antithrombotic activity. BPTU is able to block the P2Y1 receptor located at the neuromuscular junction of the gastrointestinal tract.

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BPTU Chemical Structure

BPTU Chemical Structure

CAS No. : 870544-59-5

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Based on 1 publication(s) in Google Scholar

BPTU Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

BPTU (BMS-646786) is a non-nucleotide P2Y1 receptor allosteric antagonist with antithrombotic activity. BPTU is able to block the P2Y1 receptor located at the neuromuscular junction of the gastrointestinal tract[1][2].

IC50 & Target

P2Y1[1]
In Vitro

BPTU blocks the supramaximal fast inhibitory junction potentials (fIJP) in a concentration-dependent manner both in the rat and mouse colon. The EC50 of BPTU is approximately 0.3 μM and 0.06 μM for the rat and mouse colon, respectively. In the rat colon, addition of the P2Y agonist ADPβS at 10 μM significantly reduces spontaneous contractions to a 43.2±13.4% (N=5) (P=0.0002), and this reduction is blocked by 15 min incubation with BPTU at a concentration of 3 μM (93.3±5.1%). Similar results are obtained in the murine colon where ADPβS at 10 μM reduces the area under the curve (AUC) of contractions to a 15.8±5.1% (N=4) (P<0.0001) and its effect is reversed with BPTU at 3 μM (82.7±3.6%). Addition of MRS2365, a selective P2Y1 agonist, at a concentration of 5 μM significantly reduces spontaneous contractions to a 21.2±4.8% (N=5) (P=0.0002) in the murine colon, and this reduction is blocked by 15 min incubation with BPTU at a concentration of 3 μM (93.1±3.8%). The blockage of the MRS2365-induced response by BPTU at 3 μM also occurs in control conditions (N=5) (10.2±5.5% vs. 86.7±5.0%)[1].

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

BPTU Related Antibodies
In Vivo

Uptake of BPTU from the peritoneal cavity is relatively rapid. Blood boron levels are maximal within 1 h after administration. After only 1 h, a boron tumor-to-blood ratio above 1 is found for BPTU in pigmented tumors, which is indicative of drug retention. This is not seen in the non-pigmented tumor variant, in which tumor boron levels closely follow blood levels. Up to 24 h, Borocaptate sodium (BSH) exhibits no selective retention in either tumor, but achieves higher maximum tumor boron concentrations than BPTU as a result of the administration of higher amounts of boron. During the tissue distribution phase, liver-to-kidney boron concentration ratios range from 2 to 4 for BSH and from 0.5 to 1 for BPTU[2].

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

445.43

Formula

C23H22F3N3O3
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NC1=CC=C(OC(F)(F)F)C=C1)NC2=CC=CN=C2OC3=CC=CC=C3C(C)(C)C
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 : ≥ 33.3 mg/mL (74.76 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.2450 mL 11.2251 mL 22.4502 mL
5 mM 0.4490 mL 2.2450 mL 4.4900 mL
View the Complete Stock Solution Preparation Table

* 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

  • Dilution Calculator

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

Mass
=
Concentration
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

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Concentration (final)

C2

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Volume (final)

V2

In Vivo:

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

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 (5.61 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.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

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

    Solubility: ≥ 2.5 mg/mL (5.61 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

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References
Cell Assay
[1]

Electrophysiological experiments are performed with colonic rat and mouse strips. Inhibitory junction potentials (IJP) are elicited by electrical field stimulation (EFS) using two silver chloride plates placed 1.5 cm apart perpendicular to the longitudinal axis of the preparation. The protocol consists of single pulse trains of EFS (0.4 ms pulse duration) at increasing voltages (8, 12, 16, 20, 24, 28, 32, 36, 40 V). The voltage responsible for the supramaximal response is used to elicit single pulses during incubation with BPTU at increasing concentrations (1×10-8 M, 1×10-7 M, 3×10-7 M, 1×10-6 M and 3×10-6 M). Another train of single pulses at increasing voltages is elicited after the highest dose of BPTU. The amplitude of the IJP (mV) is measured considering it as the difference between the maximal hyperpolarization and the resting membrane potential (RMP)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

Mice are given BPTU intraperitoneally at doses of 3.15 mg of boron per kg body weight. Injection volumes range from 0.25 to 0.5 mL for both intravenous and intraperitoneal administrations. Six mice are not given any drug to allow measurement of boron background levels. Animals are killed with carbon dioxide 0.2, 0.4, 1, 2, 4, 24 and 48 h after drug administration and samples are taken from tumor, blood, skin, muscle, brain, kidneys and liver. Tumor tissue from mice bearing B16.013 tumor is checked by eye for the absence of pigmentation. BPTU is also given in a multiple dose scheme. Every 2 h 0.4 to 0.5 mL of the above-mentioned BPTU solution is given intraperitoneally (4×3.15 mg/kg boron). Twenty-four hours after the last administration, the animals are sacrificed and samples are taken[2].

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

Complete Stock Solution Preparation Table

* 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.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.2450 mL 11.2251 mL 22.4502 mL 56.1255 mL
5 mM 0.4490 mL 2.2450 mL 4.4900 mL 11.2251 mL
10 mM 0.2245 mL 1.1225 mL 2.2450 mL 5.6126 mL
15 mM 0.1497 mL 0.7483 mL 1.4967 mL 3.7417 mL
20 mM 0.1123 mL 0.5613 mL 1.1225 mL 2.8063 mL
25 mM 0.0898 mL 0.4490 mL 0.8980 mL 2.2450 mL
30 mM 0.0748 mL 0.3742 mL 0.7483 mL 1.8709 mL
40 mM 0.0561 mL 0.2806 mL 0.5613 mL 1.4031 mL
50 mM 0.0449 mL 0.2245 mL 0.4490 mL 1.1225 mL
60 mM 0.0374 mL 0.1871 mL 0.3742 mL 0.9354 mL
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BPTU Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

BPTU870544-59-5BMS-646786BMS646786BMS 646786P2Y ReceptorthrombosisantithromboticInhibitorinhibitorinhibit

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