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Cat. No. M7509
UNC0642  Structure
Size Price Availability Quantity
10mg USD 150 In stock
50mg USD 450 In stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

In vitro: UNC0642 is competitive with the peptide substrate and non-competitive with the cofactor SAM. The Ki of UNC0642 is determined to be 3.7 ± 1 nM. It is more than 20,000-fold selective for G9a and GLP over 13 other methyltransferases (IC50 > 50,000 nM) and more than 2,000-fold selective over PRC2-EZH2 (IC50 > 5,000 nM). UNC0642 displays high potency (IC50 < 150 nM) in reducing cellular levels of H3K9me2, low cell toxicity (EC50 > 3,000 nM), resulting in a good separation of functional potency and cell toxicity with a tox/function ratio (which is determined by dividing the EC50 value of the observed toxicity by the IC50 value of the functional potency) of > 45 in U2OS, PC3, and PANC-1 cells. UNC0642 reduces clonogenicity in PANC-1 cells in a concentration-dependent manner while it has no effect on clonogenicity in MDA-MB-231 cells.

In vivo: For evaluation in vivo PK properties in male Swiss Albino mice, a single intraperitoneal (IP) injection (5 mg/kg) of UNC0642 results in a plasma Cmax (maximum concentration) of 947 ng/mL and an AUC (area under the curve) of 1265 hr*ng/mL. It displays modest brain penetration with a brain/plasma ratio of 0.33. A single intraperitoneal (i.p.) injection dose of 5 mg/kg of UNC0642 is sufficient to inhibit G9a activity in adult mice. UNC0642 improves the life span and weight gain of m+/pΔS−U pups, produces long-lasting activation of PWS-associated genes, is apparently well tolerated and produces no notable acute toxicity, and does not interfere with the expression of the AS-associated Ube3a gene.

Cell Experiment
Cell lines MDA-MB-231, PC3, and U2OS cells
Preparation method MDA-MB-231, PC3, and U2OS cells are cultured in RPMI with 10% FBS, PANC-1 cells in DMEM with 10% FBS. Cells are treated with inhibitors for 48 h. Cell viability assays are performed by incubating cells with 0.1 mg/mL of resazurin for 3-4 h. Resazurin reduction is monitored with 544 nm excitation, measuring fluorescence at 590 nm.
Incubation time 48 h
Animal Experiment
Animal models male Swiss Albino mice
Dosages 5 mg/kg
Administration i.p.
Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 546.7
Formula C29H44F2N6O2
CAS Number 1481677-78-4
Purity >98%
Solubility 1481677-78-4
Storage at -20°C

YM155 as an inhibitor of cancer stemness simultaneously inhibits autophosphorylation of epidermal growth factor receptor and G9a-mediated stemness in lung cancer cells.
Cheng CC, et al. PLoS One. 2017 Aug 7;12(8):e0182149. PMID: 28787001.

Discovery of an in vivo chemical probe of the lysine methyltransferases G9a and GLP.
Liu F, et al. J Med Chem. 2013 Nov 14;56(21):8931-42. PMID: 24102134.

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Abmole Inhibitor Catalog 2017

Keywords: UNC0642 supplier, Histone Methyltransferase, inhibitors

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