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Three applications on advanced topics in organic chemistry in one bundle: - Carboxylic Acids - Steroids - Heterocyclic compounds CARBOXYLIC ACIDS Carboxylic acids and esters are one of the most important classes of organic compounds. They are everywhere: * in food (citric acid; vinegar = a solution of acetic acid); * in medicines (aspirin = acetylsalicylic acid); * in fats (triglycerides are esters of fatty acids and glycerol); * in plastics (polyesters); * in biochemistry (transformation of pyruvate through the citric acid cycle); * and even in ants :) (formic acid) Learn structures and trivial names of 50 most important carboxylic acids and their esters and salts. * Aliphatic saturated acids * Unsaturated and substituted acids * Di- and tricarboxylic acids * Aromatic acids * pKa values of all acids! STEROIDS Steroids are an important class of natural products with various biological functions: hormones (estradiol, testosterone), vitamins (vitamin D3), lipids (cholesterol). This app is designed for chemistry, biochemistry, and pharmacy students. It provides you with a convenient tool to get acquainted with chemical formulas of the most important natural and synthetic steroids. Many of them are top-selling drugs used for a treatment of asthma, baldness, prostate cancer, and as oral contraceptives. * 40 steroid structures * flashcards * a multiple-choice quiz * a spell-the-name quiz HETEROCYCLES Heterocycles are parts of: * Biomolecules (nucleic bases in your DNA and RNA; amino acids Histidine and Tryptophan) * Important drugs (80% of top-selling drugs contain heterocycles: benzodiazepines, quinine, penicillin, etc.) * and even Food (sugar has heterocyclic rings too!) That's why it's so useful to know the structures of major heterocyclic compounds for molecular biologists, pharmacists, organic chemists and for general public interested in what the stuff is made from. This app is the unique place to learn the structures and names of 80+ heterocycles. * Entertaining letter quiz 'Structure - Name' * Nitrogen, oxygen, and sulfur heterocycles * Everything from Purine to Pyridine
