Search results
Caffeine is a drug of the methylxanthine class used for a variety of purposes, including certain respiratory conditions of the premature newborn, pain relief, and to combat drowsiness. Caffeine is similar in chemical structure to [Theophylline] and [Theobromine]. It can be sourced from coffee beans, but also occurs naturally in various teas and ...
The chemical formula is C 8 H 10 N 4 O 2 . Caffeine has a molar mass of 194.19 grams (6.85 ounces). It is soluble in water and in many organic solvents, and it appears in pure form as white crystals. Caffeine can be prepared by extraction from natural sources or by synthesis from uric acid.
ChemSpider record containing structure, synonyms, properties, vendors and database links for Caffeine, 58-08-2, guaranine.
26 sie 2024 · Pure caffeine (trimethylxanthine) occurs as a white powder or as silky needles, which melt at 238 °C (460 °F); it sublimes at 178 °C (352 °F) at atmospheric pressure. It is very soluble in hot water; upon cooling, the solution deposits crystals of caffeine monohydrate. Caffeine is generally less soluble in organic solvents than in hot water.
2 cze 2019 · Caffeine (C 8 H 10 N 4 O 2) is the common name for trimethylxanthine (systematic name is 1,3,7-trimethylxanthine or 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione). The chemical is also known as coffeine, theine, mateine, guaranine, or methyltheobromine.
26 lis 2023 · Understanding the solubility of caffeine in water is crucial for industries that manufacture caffeinated beverages and for individuals who want to manage their caffeine intake. It also explains why caffeine can be easily extracted from coffee beans or tea leaves when they are steeped in hot water.
30 gru 2023 · Caffeine is an odorless white solid, slightly soluble in water, though its solubility increases with temperature and the addition of an acid. It shows good solubility in dichloromethane and chloroform .
