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Pifithrin-β HBr (QB102; Cyclic Pifithrin-α)

This product is for research use only, not for human use. We do not sell to patients.

Pifithrin-β HBr (QB102; Cyclic Pifithrin-α)
For small sizes, please check our retail website as below: www.invivochem.com
Size Price Stock
250mg$1150Check With Us
500mg$1700Check With Us
1g$2550Check With Us

Cat #: V0092 CAS #: 511296-88-1 Purity ≥ 98%

Description: Pifithrin-β HBr (QB-102; Cyclic-Pifithrin-α), the hydrobromide salt of Pifithrin-β, is a potent p53 inhibitor (IC50 of 23 μM) and a cell-permeable Cyclized analog of Pifithrin-α with higher stability and reduced cytotoxicity.

References: Christodoulou MS, et al. Synthesis and biological evaluation of imidazolo[2,1-b]benzothiazole derivatives, as potential p53 inhibitors. Bioorg Med Chem. 2011 Mar 1;19(5):1649-57.

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Product Promise

Promise
Molecular Weight (MW)349.29
Molecular FormulaC16H17BrN2S
CAS No.511296-88-1
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: >10 mMr
Water: N/Ar
Ethanol: N/A
SynonymsPifithrin-β HBr; Pifithrin-beta HBr; PFTβ HBr; PFT-β HBr; QB102 HBr; QB 102; QB-102; Cyclic-Pifithrin-α
ProtocolIn VitroPifithrin-α hydrobromide (PFT β hydrobromide), an inhibitor of the p53 protein, is regarded as a lead compound for cancer and neurodegenerative disease therapy. Pifithrin-α is very unstable in culture medium and rapidly converts to its condensation product pifithrin-β, the N-acetyl derivative.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM2.8630 mL14.3148 mL28.6295 mL57.2590 mL
5mM0.5726 mL2.8630 mL5.7259 mL11.4518 mL
10mM0.2863 mL1.4315 mL2.8630 mL5.7259 mL
20mM0.1431 mL0.7157 mL1.4315 mL2.8630 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
Mass
=
Concentration
×
Volume
×
Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

Concentration(start)
C1
×
Volume(start)
V1
=
Concentration(final)
C2
×
Volume(final)
V2
Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid 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 master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (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.