Catalog No. Size PriceQuantity
M13874-2 2mg solid $120
M13874-10 10mg solid $360


M77976 is a specific ATP-competitive inhibitor of PDK4 (pyruvate dehydrogenase kinase isoforms 4), with an IC50 of 648 μM. M77976 is potential for the research of obesity and diabetes.

Product information

CAS Number: 394237-61-7

Molecular Weight: 296.32

Formula: C17H16N2O3

Chemical Name: 4-[4-(4-methoxyphenyl)-5-methyl-1H-pyrazol-3-yl]benzene-1,3-diol

Smiles: CC1NN=C(C=1C1C=CC(=CC=1)OC)C1=CC=C(O)C=C1O


InChi: InChI=1S/C17H16N2O3/c1-10-16(11-3-6-13(22-2)7-4-11)17(19-18-10)14-8-5-12(20)9-15(14)21/h3-9,20-21H,1-2H3,(H,18,19)

Technical Data

Appearance: Solid Power

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

Solubility: DMSO : 250 mg/mL (843.68 mM; Need ultrasonic).

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: ≥12 months 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:

M77976 binds to the ATP-binding pocket of PDK4 and causes local conformational changes with complete disordering of the ATP lid. M77976 makes hydrophobic interactions with the side chains of Asn258, Ala262, Val298, Leu306 and Thr358 of PDK4.


  1. Kukimoto-Niino M, et al. Inhibitor-bound structures of human pyruvate dehydrogenase kinase 4. Acta Crystallogr D Biol Crystallogr. 2011 Sep;67(Pt 9):763-73.

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

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