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KT109

Alias: KT 109; KT-109; KT109
Cat No.:V23338 Purity: ≥98%
KT109 is a potent and specific diacylglycerol lipase-β (DAGLβ) inhibitor (antagonist) with IC50 of 42 nM.
KT109
KT109 Chemical Structure CAS No.: 1402612-55-8
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
50mg
100mg
Other Sizes

Other Forms of KT109:

  • (R)-KT109
  • (S)-KT109
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
KT109 is a potent and specific diacylglycerol lipase-β (DAGLβ) inhibitor (antagonist) with IC50 of 42 nM. KT109 is about 60-fold more selective for DAGLβ than DAGLα. KT109 has inhibitory activity against PLA2G7 (IC50=1 µM). KT109 did not affect the activities of FAAH, MGLL, ABHD11, and cytosolic phospholipase A2 (cPLA2 or PLA2G4A). KT109 disrupts lipid networks involved in macrophage inflammatory responses and reduces 2-arachidonoylglycerol (2-AG), arachidonic acid, and eicosanoids in mouse peritoneal macrophages.
KT109 is a potent and selective inhibitor of diacylglycerol lipase-β (DAGLβ). It displays approximately 60-fold selectivity for DAGLβ over DAGLα. KT109 shows negligible activity against other key enzymes involved in endocannabinoid signaling, including FAAH, MAGL, and ABHD11. The compound is a research tool for studying the endocannabinoid system.
Biological Activity I Assay Protocols (From Reference)
Targets
DAGLβ (diacylglycerol lipase-β). DAGLβ is a serine hydrolase that produces the endocannabinoid 2-arachidonoylglycerol (2-AG) from diacylglycerol. KT109 shows ~60-fold selectivity for DAGLβ over DAGLα. The main off-target is ABHD6 (IC50 = 16 nM).
ln Vitro
KT109 inhibits DAGLβ with an IC50 of 42 nM. It has ~60-fold selectivity for DAGLβ over DAGLα. KT109 shows negligible activity against FAAH, MAGL, and ABHD11. The main off-target inhibition against ABHD6 has an IC50 of 16 nM.
ln Vivo
KT109-treated wild-type mice displayed reductions in LPS-induced allodynia similar to DAGL-β (-/-) mice. This confirms that the in vivo effects of KT109 are mediated through DAGLβ inhibition. Detailed pharmacodynamic effects in additional animal models have not been extensively reported.
Enzyme Assay
DAGLβ enzymatic activity assay: Recombinant human or mouse DAGLβ is incubated with varying concentrations of KT109 and a fluorogenic substrate (e.g., a diacylglycerol analogue or 4-nitrophenyl butyrate) in assay buffer (50 mM HEPES pH 7.4, 100 mM NaCl, 2 mM CaCl₂, 0.1% Triton X-100) at 37°C for 30-60 min. The reaction product is measured by fluorescence or absorbance. IC50 values are calculated.
Cell Assay
Endocannabinoid measurement in cells: Cells (e.g., Neuro2A or primary neurons) are treated with KT109 at varying concentrations (1 nM - 10 µM) for 30-60 min. Lipids are extracted, and 2-AG levels are measured by LC-MS/MS. The inhibition of DAGLβ-mediated 2-AG production is calculated. Selectivity is assessed by measuring other lipid species.
Animal Protocol
LPS-induced allodynia model in mice: Mice are treated with KT109 (route and dose to be determined) prior to intraplantar injection of LPS. Mechanical allodynia is assessed using von Frey filaments. Paw withdrawal thresholds are measured at various time points. KT109-treated mice show reductions in allodynia similar to DAGL-β knockout mice.
ADME/Pharmacokinetics
No detailed pharmacokinetic data has been published in the available literature. KT109 has a molecular weight and formula consistent with small-molecule serine hydrolase inhibitors. Comprehensive PK parameters such as bioavailability, half-life, and plasma protein binding remain to be characterized. The compound is available as a research reagent.
Toxicity/Toxicokinetics
No toxicity data has been published in the available literature. KT109 is for research use only. Standard laboratory safety practices should be followed when handling this compound. As a DAGLβ inhibitor, potential effects on endocannabinoid signaling should be considered.
References

[1]. DAGLβ inhibition perturbs a lipid network involved in macrophage inflammatory responses. Nat Chem Biol. 2012 Dec;8(12):999-1007.

Additional Infomation
KT109 is a potent, selective DAGLβ inhibitor with an IC50 of 42 nM and ~60-fold selectivity over DAGLα. It shows negligible activity against FAAH, MAGL, and ABHD11. KT109 reduces LPS-induced allodynia in mice. The compound is a valuable tool for studying DAGLβ function in the endocannabinoid system. No clinical trials or approved上市 status have been reported.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H26N4O
Molecular Weight
422.532
Exact Mass
422.21
CAS #
1402612-55-8
Related CAS #
(R)-KT109; 2055172-60-4; (S)-KT109; 2055172-61-5
PubChem CID
53364540
Appearance
White to off-white solid powder
Density
1.2±0.1 g/cm3
Boiling Point
637.3±53.0 °C at 760 mmHg
Flash Point
339.3±30.9 °C
Vapour Pressure
0.0±1.9 mmHg at 25°C
Index of Refraction
1.653
LogP
5.23
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
4
Heavy Atom Count
32
Complexity
593
Defined Atom Stereocenter Count
0
SMILES
O=C(N1N=NC(C2=CC=C(C3=CC=CC=C3)C=C2)=C1)N4CCCCC4CC5=CC=CC=C5
InChi Key
JKJMWHULJIOKPJ-UHFFFAOYSA-N
InChi Code
InChI=1S/C27H26N4O/c32-27(30-18-8-7-13-25(30)19-21-9-3-1-4-10-21)31-20-26(28-29-31)24-16-14-23(15-17-24)22-11-5-2-6-12-22/h1-6,9-12,14-17,20,25H,7-8,13,18-19H2
Chemical Name
(2-benzylpiperidin-1-yl)-[4-(4-phenylphenyl)triazol-1-yl]methanone
Synonyms
KT 109; KT-109; KT109
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~100 mg/mL (~236.68 mM)
Solubility (In Vivo)
Solubility in Formulation 1: 2.5 mg/mL (5.92 mM) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), Clear solution; with ultrasonication and warming and heat to 80°C.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of DMSO stock solution (25.0 mg/mL) to 900 μL of corn oil and mix well.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.3667 mL 11.8335 mL 23.6670 mL
5 mM 0.4733 mL 2.3667 mL 4.7334 mL
10 mM 0.2367 mL 1.1833 mL 2.3667 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration: mg/mL;

Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
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