ML297 (VU0456810)

Cas No.:	1443246-62-5
Chemical Name:	N-(3,4-Difluorophenyl)-N'-(3-methyl-1-phenyl-1H-pyrazol-5-yl)urea
Synonyms:	ML 297,ML-297,ML297,VU0456810,VU-0456810,VU 0456810
SMILES:	O=C(NC2=CC(C)=NN2C3=CC=CC=C3)NC1=CC(F)=C(F)C=C1
Formula:	C17H14F2N4O
M.Wt:	328.32
Purity:	>98%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Description:	ML 297 (VU 0456810) is a potent and selective GIRK1/2 activator, with an EC50 of 0.16 μM. ML 297 is potential for the treatment of epilepsy[1][2].
Target:	ML 297 (VU 0456810) is a potent and selective GIRK1/2 activator, with an EC50 of 0.16 μM. ML 297 is potential for the treatment of epilepsy[1][2].
In Vivo:	ML297 (60 mg/kg; i.p.) shows a highly significant ability to both prevent convulsions and prevent fatality of the PTZ treatment[2]. Animal Model: 8-10 months old C57/BL6 male mice (approximately 30 g)[2] Dosage: 60 mg/kg Administration: Intraperitoneal injection Result: Most of the animals neither convulsions nor death.
In Vitro:	ML 297 is completely inactive for GIRK2/3[1]. ML297 shows concentration-dependent efficacy in expressing GIRK1/2 cells and with an EC50 of 162 nM[2]. ML297 shows a complete inability to modulate the activity of HEK-293 cells expressing GIRK2 alone and GIRKGIRK2/3[2].
References:	[1]. Wen W, et al. Discovery of 'molecular switches' within a GIRK activator scaffold that afford selective GIRK inhibitors. Bioorg Med Chem Lett. 2013 Aug 15;23(16):4562-6. [2]. Kaufmann K, et al. ML297 (VU0456810), the first potent and selective activator of the GIRK potassium channel, displays antiepileptic properties in mice. ACS Chem Neurosci. 2013 Sep 18;4(9):1278-86.