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CYCLIC-PIFITHRIN-ALPHA

CAS No.
60477-34-1
Chemical Name:
CYCLIC-PIFITHRIN-ALPHA
Synonyms
Pifithrin-2;Pifithrin-alpha (cyclic) . HBr;Pifithrin-β (QB-102 and Cyclic-Pifithrin-α);Pifithrin-α, Cyclic- - CAS 60477-34-1 - Calbiochem;Pifithrin-α, Cyclic- - CAS 60477-34-1 - Calbiochem;2-(p-Tolyl)-5,6,7,8-tetrahydrobenzo[d]imidazo[2,1-b]thiazole;5,6,7,8-Tetrahydro-2-(4-methylphenyl)-imidazo[2,1-b]benzothiazole;Imidazo[2,1-b]benzothiazole, 5,6,7,8-tetrahydro-2-(4-methylphenyl)-
CBNumber:
CB2504209
Molecular Formula:
C16H16N2S
Molecular Weight:
268.38
MDL Number:
MFCD02108837
MOL File:
60477-34-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:58:06
Product description Number Pack Size Price
Pifithrin-alpha (cyclic) hydrobromide (2-(4-Methylphenyl)imidazo-5,6,7,8-tetrahydrobenzothiazole . HBr) >98%(NMR) 045150 5mg $290
Pifithrin-alpha (cyclic) hydrobromide (2-(4-Methylphenyl)imidazo-5,6,7,8-tetrahydrobenzothiazole . HBr) >98%(NMR) 045150 10mg $395
Pifithrin-alpha (cyclic) hydrobromide (2-(4-Methylphenyl)imidazo-5,6,7,8-tetrahydrobenzothiazole . HBr) >98%(NMR) 045150 50mg $695
Pifithrin-² KCA47734 25mg $982.75
Pifithrin-² KCA47734 50mg $1367.5
More product size

CYCLIC-PIFITHRIN-ALPHA Properties

Melting point 266.4-267.3 °C(lit.)
Density 1.30±0.1 g/cm3(Predicted)
storage temp. −20°C
solubility DMSO: 20 mg/mL
form White solid
pka 6.75±0.20(Predicted)
color white
FDA UNII 45I8QO7K37
UNSPSC Code 12352200

SAFETY

Risk and Safety Statements

WGK Germany  3
Storage Class 11 - Combustible Solids

CYCLIC-PIFITHRIN-ALPHA price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 045150 Pifithrin-alpha (cyclic) hydrobromide (2-(4-Methylphenyl)imidazo-5,6,7,8-tetrahydrobenzothiazole . HBr) >98%(NMR) 60477-34-1 5mg $290 2026-06-03 Buy
Usbiological 045150 Pifithrin-alpha (cyclic) hydrobromide (2-(4-Methylphenyl)imidazo-5,6,7,8-tetrahydrobenzothiazole . HBr) >98%(NMR) 60477-34-1 10mg $395 2026-06-03 Buy
Usbiological 045150 Pifithrin-alpha (cyclic) hydrobromide (2-(4-Methylphenyl)imidazo-5,6,7,8-tetrahydrobenzothiazole . HBr) >98%(NMR) 60477-34-1 50mg $695 2026-06-03 Buy
Biosynth KCA47734 Pifithrin-² 60477-34-1 25mg $982.75 2026-06-04 Buy
Biosynth KCA47734 Pifithrin-² 60477-34-1 50mg $1367.5 2026-06-04 Buy
Product number Packaging Price Buy
045150 5mg $290 Buy
045150 10mg $395 Buy
045150 50mg $695 Buy
KCA47734 25mg $982.75 Buy
KCA47734 50mg $1367.5 Buy

CYCLIC-PIFITHRIN-ALPHA Chemical Properties,Uses,Production

Uses

Pifithrin-β (PFT β) is a potent p53 inhibitor with an IC50 of 23 μM.

Definition

ChEBI: 2-(4-methylphenyl)-5,6,7,8-tetrahydroimidazo[2,1-b][1,3]benzothiazole is a member of imidazoles.

General Description

A cell-permeable and very stable analog of Pifithrin-α (Cat. No. 506132), with similar biological function, but with reduced cytotoxicity. A chemical inhibitor of p53. Reversibly inhibits p53-dependent transactivation of p53-responsive genes; also reversibly blocks p53-mediated apoptosis. Acts as a P-gp modulator by changing relative substrate specificity of the transporter. This compound has been reported to be a potent STAT6 transcriptional inhibitor.

Biochem/physiol Actions

Cell permeable: yes

References

[1] 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. DOI:10.1016/j.bmc.2011.01.039
[2] Fernández-Cruz ML, et al. Biological and chemical studies on aryl hydrocarbon receptor induction by the p53 inhibitor pifithrin-α and its condensation product pifithrin-β. Life Sci. 2011 Apr 25;88(17-18):774-83. DOI:10.1016/j.lfs.2011.02.019
[3] Da Pozzo E, et al. p53 functional inhibitors behaving like pifithrin-β counteract the Alzheimer peptide non-β-amyloid component effects in human SH-SY5Y cells. ACS Chem Neurosci. 2014 May 21;5(5):390-9.

CYCLIC-PIFITHRIN-ALPHA Preparation Products And Raw materials

Raw materials

Preparation Products

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Pifithrin-α, Cyclic- - CAS 60477-34-1 - Calbiochem Pifithrin-alpha (cyclic) . HBr 5,6,7,8-Tetrahydro-2-(4-methylphenyl)-imidazo[2,1-b]benzothiazole Pifithrin-2 Imidazo[2,1-b]benzothiazole, 5,6,7,8-tetrahydro-2-(4-methylphenyl)- Pifithrin-β (QB-102 and Cyclic-Pifithrin-α) 2-(p-Tolyl)-5,6,7,8-tetrahydrobenzo[d]imidazo[2,1-b]thiazole Pifithrin-α, Cyclic- - CAS 60477-34-1 - Calbiochem 60477-34-1