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EC 50 is a measure of concentration, expressed in molar units (M), where 1 M is equivalent to 1 mol / L. The EC 50 of a graded dose response curve therefore represents the concentration of a compound where 50% of its maximal effect is observed. [4] The EC 50 of a quantal dose response curve represents the concentration of a compound where 50% ...
For the geodetic datum ED50, see ED50. In pharmacology, an effective dose (ED) or effective concentration (EC) is the dose or concentration of a drug that produces a biological response. [1][2] The term "effective dose" is used when measurements are taken in vivo, while "effective concentration" is used when the measurements are taken in vitro.
The rate constant for the vapor phase reaction of heptachlorodibenzo-p-dioxin with photochemically produced hydroxyl radicals has been estimated to be 1.3x10 −12 cu cm/molecule-sec at 25 °C which corresponds to an atmospheric half-life of 12.3 days at an atmospheric concentration of 5x10 5 hydroxyl radicals per cu cm. [13]
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1,6-Hexanediol diglycidyl ether. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 1,6-Hexanediol diglycidyl ether is an organic chemical in the glycidyl ether family. It is an aliphatic compound that is a colorless liquid. It has two epoxide (oxirane) groups per molecule.
1,6-Methano (10)annulene. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 1,6-Methano [10]annulene (also known as 1,6-methanonaphthalene or homonaphthalene) is an aromatic hydrocarbon with chemical formula C 11 H 10. It was the first stable aromatic compound based on the ...
Ethanol fuel mixtures have "E" numbers which describe the percentage of ethanol fuel in the mixture by volume, for example, E85 is 85% anhydrous ethanol and 15% gasoline. Low-ethanol blends are typically from E5 to E25, although internationally the most common use of the term refers to the E10 blend. Blends of E10 or less are used in more than ...
The Samsung Galaxy Tab 3 10.1 is a 10.1-inch Android -based tablet computer produced and marketed by Samsung Electronics. [8] It belongs to the third generation of the Samsung Galaxy Tab series, which also includes a 7-inch and an 8-inch model, the Galaxy Tab 3 7.0 and Galaxy Tab 3 8.0. It was announced on 3 June 2013 and launched in the US on ...