Amiloride HCl 2016-88-8

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Amiloride HCl

Amiloride HCl Chemical Structure

Molecular Weight: 266.09 Amiloride HCl, a pyrazine compound inhibiting sodium reabsorption through sodium channels in renal epithelial cells.


Biological Activity


Amiloride hydrochloride(Midamor), a pyrazine compound inhibit sodium reabsorption through sodium channels in renal epithelial cells. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with diuretics to spare potassium loss.


Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

Species	Baboon	Dog	Monkey	Rabbit	Guinea pig	Rat	Hamster	Mouse
Weight (kg)	12	10	3	1.8	0.4	0.15	0.08	0.02
Body Surface Area (m2)	0.6	0.5	0.24	0.15	0.05	0.025	0.02	0.007
Km factor	20	20	12	12	8	6	5	3

Animal A (mg/kg) = Animal B (mg/kg) multiplied by	Animal B Km
	Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 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 resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×	mouse Km(3)	= 11.2 mg/kg
	rat Km(6)

Chemical Information

Molecular Weight (MW)	266.09
Formula	C6H8ClN7O.HCl
CAS No.	2016-88-8

Storage	3 years -20℃Powder
	6 months-80℃in solvent (DMSO, water, etc.)
Synonyms

Solubility (25°C) *	In vitro	DMSO	53 mg/mL (199.18 mM)
		Water	6 mg/mL (22.54 mM)
		Ethanol	5 mg/mL (18.79 mM)

Chemical Name	1-(3,5-diamino-2-chloropyrazine-6-carbonyl)guanidine hydrochloride

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