WM-1119 is a highly potent and selective KAT6A inhibitor, with an IC50 of 0.25 μM for KAT6A in lymphoma cells, the binding KD values of WM-1119 with KAT6A, KAT5 and KAT7 are 2 nM, 2.2 μM, 0.5 μM , respectively.

Product information

CAS Number: 2055397-28-7

Molecular Weight: 389.38

Formula: C18H13F2N3O3S

Chemical Name: 3-fluoro-N'-(2-fluorobenzenesulfonyl)-5-(pyridin-2-yl)benzohydrazide

Smiles: O=C(NNS(=O)(=O)C1=CC=CC=C1F)C1C=C(F)C=C(C=1)C1C=CC=CN=1

InChiKey: QLXULUNLCRKWRD-UHFFFAOYSA-N

InChi: InChI=1S/C18H13F2N3O3S/c19-14-10-12(16-6-3-4-8-21-16)9-13(11-14)18(24)22-23-27(25,26)17-7-2-1-5-15(17)20/h1-11,23H,(H,22,24)

Technical Data

Appearance: Solid Power

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

Solubility: DMSO : 250 mg/mL (642.05 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:

WM-1119 induces cell cycle exit and cellular senescence without causing DNA damage. WM-1119 is 1,100-fold and 250-fold more active against KAT6A than against KAT5 or KAT7, respectively, and so shows greater specificity for KAT6A than does WM-8014. Treatment of MEFs with WM-1119 results in cell cycle arrest in G1 and a senescence phenotype similar to that seen upon treatment with WM-8014. Notably, the activity of WM-1119 in this cell-based assay is an order of magnitude greater than WM-8014 and WM-1119 is able to induce cell cycle arrest at 1 μM. Treatment with WM-1119 inhibits the proliferation of the EMRK1184 lymphoma cells in vitro, WM-1119 (IC50=0.25 μM) is ninefold more active than WM-8014 (IC50=2.3 μM), as expected on the basis of reduced protein binding.

In Vivo:

By day 14, the cohorts that are treated four times per day with WM-1119 have arrested tumour growth, with the exception of one mouse that does not respond. Spleen weights in the WM-1119-treatment group (treated four times per day) are substantially lower than spleen weights in the vehicle-treated group. Treatment with WM-1119 three times per day leads to a significant reduction in tumour burden and spleen weight, but is not as effective as treatment four times per day. WM-1119 is well-tolerated; mice show no generalized ill effects and weight loss is not observed. The proportion and overall number of tumour cells is substantially reduced by WM-1119 treatment (four times per day).

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