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Cat. No. M9056
Losartan Structure


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1g USD 65  USD65 In stock
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Biological Activity

Losartan is an antagonist of angiotensin II receptor with antihypertensive activity due to the reduced pressor effect of angiotensin II. Losartan significantly reduces Ang II-mediated cell proliferation in endometrial cancer cells. Losartan can improve disease manifestations in the lungs, an event that cannot plausibly relate to improved hemodynamics. Losartan (10 mg/kg, intraarterial injection) increases blood angiotensin levels four- to sixfold. Losartan (10 mg/kg, i.p.) increases plasma renin levels 100-fold; plasma angiotensinogen levels decreases to 24% of control; and plasma aldosterone levels are unchanged.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

Chemical Information
Molecular Weight 422.91
Formula C22H23ClN6O
CAS Number 114798-26-4
Purity 100.00%
Solubility DMSO: ≥ 80 mg/mL
Storage at -20°C

[1] Ashry O, et al. Respir Physiol Neurobiol. Evidence for expression and function of angiotensin II receptor type 1 in pulmonary epithelial cells.

[2] Choi CH, et al. Gynecol Oncol. Angiotensin II type I receptor and miR-155 in endometrial cancers: synergistic antiproliferative effects of anti-miR-155 and losartan on endometrial cancer cells.

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Keywords: Losartan, DUP-89 supplier, Angiotensin Receptor, inhibitors

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