一种具有除草活性的α-取代酸基α,β和β,γ不饱和羧酸酯类化合物,如通式(Ⅰ,Ⅱ)所示:其中:R选自H,C Having herbicidal activity of α- substituent acid group α, β and β, γ-unsaturated carboxylic acid esters, such as of the general formula (Ⅰ, Ⅱ): wherein: R is selected from H, C...
Chemical Formula HCl also known as Hydrochloric Acid Molar Mass of HCl: 36.46 g/mol ElementSymbolAtomsMass % Hydrogen H 1 2.8% Chlorine Cl 1 97.2% These particles are massive with respect to other kinds of radiation; the beta particle, for example, is some 7,000 times smaller. This on...
The alpha, beta-unsaturated lactones 2-furanone and 2-pyrone are part of the chemical structure of a variety of naturally occurring compounds (e.g., carden... José,Manuel,Calderón-Montaño,... - 《Toxicology Letters》 被引量: 3发表: 2013年 Total alpha,beta-Unsaturated-gamma-Lactone Acet...
A method for preparing an alpha,beta-dehydro-gamma- butyrolactone which comprises contacting a carboxylic acid of the formula ##STR1## wherein R is H or C.sub.1 to C.sub.10 alkyl group, with oxygen and a catalyst comprising a noble metal halide, a variable valence transition metal halide...
alpha /ss-substituted, unsaturated gamma -butyrolactones of the general formula I: <IMAGE> R<1>, R<2> and R<3> = H or alkyl(C1-7), where at least one of these radicals is an alkyl radical and the sum of the C atoms in the radicals is 1-7, preferably alpha /ss-(2-decenyl...
Purification of alpha , beta , gamma -substituted carboxylic acids of formula (I), their salts and esters or a mixture of these and one or more polyol and one or more aminoalcohol in aqueous solution comprises treatment by electrodialysis. R1 = H, 1-10C alkyl, Na<+> or K<+>; R2 =...
Beta indicates how volatile a stock's price has been in comparison to the market as a whole. A high alpha is always good. What is the formula for alpha beta? α+β=−baandαβ=ca. From these formulas, we can also find the value of the sum of the squares of the roots of a ...
Sgj Alpha Beta Gamma Nano Calcined Alumina Powder for LED PCB (Di-Electric) & Ceramic Catalyst Tube US$1.00 1 kg (MOQ) Product Details Customization: Available CAS No.: 1344-28-1 Formula: Al2O3 Contact Supplier Chat Still d...
The apoptotic index (AI) was calculated for TUNEL-positive cells (red fluorescence) in the perifocal region and the cortex of sham-operated animals within the whole area of the mount at a magnification of 20× using the formula: AI = (TUNEL-positive cell number)/(Total cell number (stained...
In this paper, we extend and overview wide families of Alpha-, Beta- and Gamma-divergences and discuss their fundamental properties. In literature usually only one single asymmetric (Alpha, Beta or Gamma) divergence is considered. We show in this paper t