Catalog No.S2674

A922500 is an inhibitor for human and mouse DGAT-1 with IC50 of 7 nM and 24 nM, respectively, good selectivity over related acyltransferases, hERG, and a panel of anti-targets.

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A922500 Chemical Structure

A922500 Chemical Structure
Molecular Weight: 428.48

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Product Description

Biological Activity

Description A922500 is an inhibitor for human and mouse DGAT-1 with IC50 of 7 nM and 24 nM, respectively, good selectivity over related acyltransferases, hERG, and a panel of anti-targets.
Targets human DGAT-1 [1] mouse DGAT-1 [1] DGAT-2 [1]
IC50 7 nM 24 nM 53 μM
In vitro A 922500 inhibits the phylogenetic family members acyl coenzyme A cholesterol acyltransferase-1 and -2 with IC50 of 296 μM. [1] A 922500 potently inhibits huDGAT-1 and mseDGAT-1. [2]
In vivo Zucker fatty rats and diet-induced dyslipidemic hamsters are dosed orally with A 922500 (0.03, 0.3, and 3 mg/kg) for 14 days. Serum triglycerides ae significantly reduced by the 3 mg/kg dose of A 922500 in both the Zucker fatty rat (39%) and hyperlipidemic hamster (53%). These serum triglyceride changes are accompanied by significant reductions in free fatty acid levels by 32% in the Zucker fatty rat and 55% in the hyperlipidemic hamster. In addition, high-density lipoprotein-cholesterol is significantly increases (25%) in the Zucker fatty rat by A 922500 administered at 3 mg/kg. [1] A 922500 confers weight loss and a reduction in liver triglycerides when dosed chronically in DIO mice and depletes serum triglycerides following a lipid challenge in a dose-dependent manner, thus, reproducing major phenotypical characteristics of DGAT-1(-/-) mice. [2] A 922500 (0.03, 0.3 and 3 mg/kg, p.o.) dose-dependently attenuates the maximal postprandial rise in serum triglyceride concentrations. [3]
Features A potent, selective, and orally bioavailable DGAT-1 inhibitor.

Protocol(Only for Reference)

Kinase Assay: [2]

In vitro DGAT-1 activity inhibition assay DGAT-1 activity is determined as follows: Assay buffer [20 mM HEPES (pH 7.5), 2 mM MgCl2, 0.04% BSA] containing 50 μM of enzyme substrate (didecanoyl glycerol) and 7.5 μM radiolabeled acyl-CoA substrate. [1- 14 C]decanoyl-CoA) is added to each well of a phospholipid FlashPlate. A small aliquot of membrane (1 μg/well) is added to start the reaction, which is allowed to proceed for 60 minutes. The reaction is terminated upon the addition of an equal volume (100 μL) of isopropanol. The plates are sealed, incubated overnight and counted the next morning on a TopCount Scintillation Plate Reader. DGAT-1 catalyzes the transfer of the radiolabel-led decanoyl group onto the sn-3 position of didecanoyl glycerol. The resultant radiolabeled tridecanoyl glycerol (tricaprin) preferentially binds to the hydrophobic coating on the phospholipid FlashPlate. The proximity of the S15 radiolabeled product to the solid scintillant incorporated into the bottom of the FlashPlate induces fluor release from the scintillant, which is measured in the TopCount Plate Reader. Various concentrations (e.g. 0.0001 μM, 0.001 μM, 0.01 μM, 0.1 μM, 1.0 μM, 10.0 μM) of A 922500 are added to individual wells prior to the addition of membranes. The potency of DGAT-1 inhibition for the A 922500 is determined by calculating the IC50 values defined as the inhibitor concentration from the sigmoidal dose response curve at which the enzyme activity is inhi

Animal Study: [1]

Animal Models Thirteen-week-old male Golden Syrian hamsters with hyperlipidemia, Ten-week-old Male Zucker fatty rats
Formulation Polyethylene glycol/hydroxypropyl-β-cyclodextrin (10% w/v)
Dosages 0.03, 0.3, and 3 mg/kg
Administration Oral gavage

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesMouseRatRabbitGuinea pigHamsterDog
Weight (kg)
Body Surface Area (m2)0.0070.0250.
Km factor36128520
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.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)


[1] King AJ et al. J Pharmacol Exp Ther. 2009, 330(2), 526-531.

[2] Zhao G, et al. J Med Chem. 2008, 51(3), 380-383.

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Chemical Information

Download A922500 SDF
Molecular Weight (MW) 428.48


CAS No. 959122-11-3
Storage 3 years -20℃powder
2 years -80℃in solvent
Synonyms N/A
Solubility (25°C) * In vitro DMSO 86 mg/mL (200.7 mM)
Water <1 mg/mL
Ethanol <1 mg/mL
In vivo 15% Captisol 20 mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Name Cyclopentanecarboxylic acid, 2-[[4'-[[(phenylamino)carbonyl]amino][1,1'-biphenyl]-4-yl]carbonyl]-, (1R,2R)-

Tech Support

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