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10mg |
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25mg |
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50mg |
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100mg |
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250mg |
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500mg |
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1g |
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Other Sizes |
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Purity: ≥98%
Tenatoprazole (formerly known as TU-199; TU 199; Ulsacare; Protop) is a prodrug of the proton pump inhibitor (PPI) class with the potential for the treatment of gastroesophageal reflux disease. It inhibits proton transport with IC50 of 3.2 μM. Tenatoprazole is a drug candidate that was undergoing clinical testing as a potential treatment for reflux oesophagitis and peptic ulcer. Tenatoprazole has an imidazopyridine ring in place of the benzimidazole moiety found in other proton pump inhibitors, and has a half-life about seven times longer than other PPIs.
ln Vitro |
In Heidenhain-pouch dogs, tenatoprazole (TU-199) (0.1, 0.2, 0.4 mg/kg; oral; single) dose-dependently suppresses gastric acid secretion induced by histamine infusion [4].
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ln Vivo |
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Animal Protocol |
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References |
[1]. Thomson AB, et al. Comparison of the effects of fasting morning, fasting evening and fed bedtime administration of tenatoprazole on intragastric pH in healthy volunteers: a randomized three-way crossover study. Aliment Pharmacol Ther. 2006;23(8):1179-1187.
[2]. Uchiyama K, et al. Effects of TU-199, a novel H+, K(+)-ATPase inhibitor, on gastric acid secretion and gastroduodenal ulcers in rats. Methods Find Exp Clin Pharmacol. 1999;21(2):115-122. [3]. Mannemuddhu SS, et al. Prazoles Targeting Tsg101 Inhibit Release of Epstein-Barr Virus following Reactivation from Latency. J Virol. 2021;95(13):e0246620. [4]. Uchiyama K, et al. The long-lasting effect of TU-199, a novel H+, K(+)-ATPase inhibitor, on gastric acid secretion in dogs. J Pharm Pharmacol. 1999;51(4):457-464. |
Molecular Formula |
C16H18N4O3S
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Molecular Weight |
346.4
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CAS # |
113712-98-4
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Related CAS # |
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
O=S(C1=NC2=C(N1)C=CC(OC)=N2)CC3=NC=C(C(OC)=C3C)C
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InChi Key |
ZBFDAUIVDSSISP-UHFFFAOYSA-N
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InChi Code |
InChI=1S/C16H18N4O3S/c1-9-7-17-12(10(2)14(9)23-4)8-24(21)16-18-11-5-6-13(22-3)19-15(11)20-16/h5-7H,8H2,1-4H3,(H,18,19,20)
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Chemical Name |
5-methoxy-2-[(4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl]-1H-imidazo[4,5-b]pyridine
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Synonyms |
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.22 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: 2.5 mg/mL (7.22 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.08 mg/mL (6.00 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 2.8868 mL | 14.4342 mL | 28.8684 mL | |
5 mM | 0.5774 mL | 2.8868 mL | 5.7737 mL | |
10 mM | 0.2887 mL | 1.4434 mL | 2.8868 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.
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.
(2) Be sure to add the solvent(s) in order.