Triamterene

Catalog No.S4080 Batch:S408001

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Technical Data

Formula

C12H11N7

Molecular Weight 253.26 CAS No. 396-01-0
Solubility (25°C)* In vitro DMSO 5 mg/mL (19.74 mM)
Water Insoluble
Ethanol Insoluble
* <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.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description Triamterene (SKF8542) blocks epithelial Na+ channel (ENaC) in a voltage-dependent manner with IC50 of 4.5 μM.
Targets
ENaC [1] ENaCαS583 [1]
4.5 μM 23.9 μM
In vitro Triamterene inhibits the epithelial sodium channels on principal cells in the late distal convoluted tubule and collecting tubule, which are responsible for 1-2% of total sodium reabsorption. Triamterene can achieve a modest amount of diuresis by decreasing the osmotic gradient necessary for water reabsorption from lumen to interstitium. Triamterene also has a potassium-sparing effect. Normally, the process of potassium excretion is driven by the electrochemical gradient produced by sodium reabsorption. As sodium is reabsorbed, it leaves a negative potential in the lumen, while producing a positive potential in the principal cell. This potential promotes potassium excretion through apical potassium channels. By inhibiting sodium reabsorption, triamterene also inhibits potassium excretion. [2]
In vivo 4'-hydroxylation of triamterene in humans appears to be mediated exclusively by CYP1A2. Inhibition or induction of CYP1A2 will change the time course of both triamterene and its active phase-II metabolite.[3]

Protocol (from reference)

Selleck's Triamterene has been cited by 2 publications

Evolutionary metabolic landscape from preneoplasia to invasive lung adenocarcinoma [ Nat Commun, 2021, 12(1):6479] PubMed: 34759281
Simultaneous Control of Endogenous and User-Defined Genetic Pathways Using Unique ecDHFR Pharmacological Chaperones. [ Cell Chem Biol, 2020, 24 pii: S2451-9456(20)30080-5] PubMed: 32330442

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.