Catalog No. Size PriceQuantity
M12419-2 2mg solid $140
M12419-10 10mg solid $420


PI-273 is a first reversibly and specific phosphatidylinositol 4-kinase (PI4KIIα) inhibitor with an IC50 of 0.47 μM. PI-273 can inhibit breast cancer cell proliferation, block the cell cycle and induce cell apoptosis.

Product information

CAS Number: 925069-34-7

Molecular Weight: 381.90

Formula: C16H16ClN3O2S2

Chemical Name: 2-({[(4-chlorophenyl)formamido]methanethioyl}amino)-4-ethyl-5-methylthiophene-3-carboxamide

Smiles: CC1SC(NC(=S)NC(=O)C2C=CC(Cl)=CC=2)=C(C=1CC)C(N)=O


InChi: InChI=1S/C16H16ClN3O2S2/c1-3-11-8(2)24-15(12(11)13(18)21)20-16(23)19-14(22)9-4-6-10(17)7-5-9/h4-7H,3H2,1-2H3,(H2,18,21)(H2,19,20,22,23)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 6.02 mg/mL (15.76 mM; ultrasonic and warming and heat to 60°C)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

PI-273 (2 μM; 48 hours) blocks the cell cycle at the G2-M phase. PI-273 (2 μM; 48 hours) induces cell apoptosis in all three Ras wild-type breast cancer cells: MCF-7, T-47D, and SK-BR-3. PI-273 (0.5-2 μM; for 3 days) can suppress the AKT signaling pathway in a dose- and time-dependent manner. PI-273 of 1 μM and 2 μM inhibits the cell proliferation of both MCF-7 and T-47D cells in a time-dependent manner.

In Vivo:

PI-273 (intraperitoneal injection; 25 mg/kg/day; 15 days) profoundly suppresses the tumor volume and weight in the MCF-7 xenografts. PI-273 (0.5 mg/kg (intravenously) or 1.5 mg/kg (intragastrically); 0.08-5 hours) has a half-life of 0.411 hours for intravenous administration and 1.321 hours for intragastrical administration, and the absolute bioavailability of PI-273 is 5.1%.


  1. Li J, et al. PI-273, a Substrate-Competitive, Specific Small-Molecule Inhibitor of PI4KIIα, Inhibits the Growth of Breast Cancer Cells. Cancer Res. 2017 Nov 15;77(22):6253-6266.

Products are for research use only. Not for human use.

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