1. Metabolic Enzyme/Protease
    Autophagy
  2. Dipeptidyl Peptidase
    Autophagy
  3. Sitagliptin phosphate monohydrate

Sitagliptin phosphate monohydrate (Synonyms: MK-0431 phosphate monohydrate)

Cat. No.: HY-13749B Purity: 99.62%
Handling Instructions

Sitagliptin phosphate monohydrate (MK-0431 phosphate monohydrate) is a potent inhibitor of DPP4 with an IC50 of 19 nM in Caco-2 cell extracts.

For research use only. We do not sell to patients.

Sitagliptin phosphate monohydrate Chemical Structure

Sitagliptin phosphate monohydrate Chemical Structure

CAS No. : 654671-77-9

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Based on 5 publication(s) in Google Scholar

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Description

Sitagliptin phosphate monohydrate (MK-0431 phosphate monohydrate) is a potent inhibitor of DPP4 with an IC50 of 19 nM in Caco-2 cell extracts[1].

IC50 & Target

IC50: 19 nM (DPP4, in Caco-2 cell extracts)

In Vitro

Sitagliptin phosphate exhibits a potent inhibitory effect on DPP-4 with IC50 of 19 nM from Caco-2 cell extracts[1]. Sitagliptin reduces in vitro migration of isolated splenic CD4 T-cells through a pathway involving cAMP/PKA/Rac1 activation[2]. A recent study demonstrates that sitagliptin exerts a novel, direct action in order to stimulate GLP-1 secretion by the intestinal L cell through a DPP-4-independent, protein kinase A- and MEK-ERK1/2-dependent pathway. It therefore reduces the effect of autoimmunity on graft survival[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

In vivo, the ED50 value of sitagliptin phosphate for inhibition of plasma DPP-4 activity is calculated to be 2.3 mg/kg 7 hour postdose and 30 mg/kg 24 hour postdose in freely fed Han-Wistar rats[1]. The streptozotocin-induced type 1 diabetes mouse model exhibits elevated DPP-4 levels in the plasma that can be substantially inhibited in mice on an Sitagliptin phosphate diet. This is achieved by a positive effect on the regulation of hyperglycemia, potentially through prolongation of islet graft survival[4]. The plasma clearance and volume of distribution of Sitagliptin phosphate are higher in rats (40-48 mL/min/kg, 7-9 L/kg) than in dogs (9 mL/min/kg, 3 L/kg); and its half-life is shorter in rats,2 hours compared with 4 hours in dogs[5].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial
Molecular Weight

523.32

Formula

C₁₆H₂₀F₆N₅O₆P

CAS No.

654671-77-9

SMILES

[H]O[H].O=C(N1CC2=NN=C(C(F)(F)F)N2CC1)C[[email protected]](N)CC3=CC(F)=C(F)C=C3F.O=P(O)(O)O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : ≥ 33 mg/mL (63.06 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.9109 mL 9.5544 mL 19.1088 mL
5 mM 0.3822 mL 1.9109 mL 3.8218 mL
10 mM 0.1911 mL 0.9554 mL 1.9109 mL
*Please refer to the solubility information to select the appropriate solvent.
References
Cell Assay
[2]

CD4T-cells are plated on membrane inserts in serum-free RPMI 1640, and cell migration is assayed using Transwell chambers (Corning), in the presence or absence of purified porcine kidney DPP-4 (32.1 units/mg; 100 mU/mL final concentration) and DPP-4 inhibitor (100 μM). After 1 hour, cells on the upper surface are removed mechanically, and cells that have migrated into the lower compartment are counted. The extent of migration is expressed relative to the control sample.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration
[1]

Mice: Overnight fasted C57BL/6J mice are challenged 45 min after compound administration with an oral glucose load (2 g/kg). Blood samples for glucose measurement are obtained by tail bleed predose and at serial time points after the glucose load. To evaluate the duration of the effect on glucose tolerance, vehicle or DPP-4 inhibitors are administered 16 h before the glucose challenge.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
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Keywords:

Sitagliptin phosphateMK-0431 phosphateDipeptidyl PeptidaseAutophagyDPPInhibitorinhibitorinhibit

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Sitagliptin phosphate monohydrate
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