Alogliptin (SYR-322) benzoate

Catalog No.S2868 Synonyms: SYR-322

For research use only.

Alogliptin (SYR-322) benzoate is a potent, selective inhibitor of DPP-4 with IC50 of <10 nM, exhibits greater than 10,000-fold selectivity over DPP-8 and DPP-9.

Alogliptin (SYR-322) benzoate Chemical Structure

CAS No. 850649-62-6

Selleck's Alogliptin (SYR-322) benzoate has been cited by 1 Publication

Purity & Quality Control

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Biological Activity

Description Alogliptin (SYR-322) benzoate is a potent, selective inhibitor of DPP-4 with IC50 of <10 nM, exhibits greater than 10,000-fold selectivity over DPP-8 and DPP-9.
DPP-4 [1]
<10 nM
In vitro

Alogliptin(SYR-322) is a potent inhibitor of DPP-4 and exhibits greater than 10,000 fold selectivity over the closely related serine proteases DPP-8 and DPP-9. Alogliptin is not an inhibitor of CYP-450 enzymes and does not block the hERG channel at concentrations up to 30 μM. [1]

In vivo Alogliptin(SYR-322) produces dose-dependent improvements in glucose tolerance and increases plasma insulin levels in female Wistar fatty rats. [1] Acute administration of alogliptin results in a significant decrease in plasma DPP-4 activity, and increases plasma active GLP-1. Alogliptin improves glucose tolerance at a dose of 0.3 mg/kg and higher, with a dose-dependent increase in plasma IRI, suggesting that improved glucose tolerance results from the ability of alogliptin to enhance insulin secretion. [2]

Protocol (from reference)

Animal Research:[2]
  • Animal Models: The N-STZ-1.5 rats
  • Dosages: 0.1, 0.3, 1 or 3 mg/kg
  • Administration: p.o.
  • (Only for Reference)

Solubility (25°C)

In vitro

DMSO 68 mg/mL
(147.34 mM)
Water 2 mg/mL
(4.33 mM)
Ethanol Insoluble

In vivo

Add solvents to the product individually and in order
(Data is from Selleck tests instead of citations):
0.5% methylcellulose
For best results, use promptly after mixing.

30 mg/mL

* 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 Information

Molecular Weight 461.51


CAS No. 850649-62-6
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CN1C(=O)C=C(N(C1=O)CC2=CC=CC=C2C#N)N3CCCC(C3)N.C1=CC=C(C=C1)C(=O)O

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT03501277 Completed Drug: Alogliptin|Drug: Pioglitazone|Drug: SYR-322-4833 BL Healthy Volunteers Takeda May 26 2018 Phase 1
NCT02276274 Completed Drug: SYR-322-MET Clinical Pharmacology Takeda June 2014 Phase 3
NCT00957268 Completed Drug: Alogliptin Diabetes Mellitus Type 2 Takeda September 2009 Phase 1

(data from, updated on 2022-01-17)

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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