What type of compound is caffeine complex?
xanthine alkaloid compound
Caffeine is a xanthine alkaloid compound that acts as a stimulant in humans. Caffeine is sometimes called guaranine when found in guarana, mateine when found in mate, and theine when found in tea.
What type of molecule is caffeine?
purine alkaloid
Caffeine is a trimethylxanthine in which the three methyl groups are located at positions 1, 3, and 7. A purine alkaloid that occurs naturally in tea and coffee. It has a role as a central nervous system stimulant, an EC 3.1.
What is the chemical name of caffeine?
1,3,7-Trimethylpurine-2,6-dione
Caffeine/IUPAC ID
What is the function of methylxanthine?
Methylxanthines have a number of pharmacologic actions that give them therapeutic value. They relax smooth muscles, including those of the bronchi, esophagus, and gastroesophageal sphincter. They are central nervous system (CNS) stimulants that can reduce fatigue and improve concentration.
Is theophylline a methylxanthine?
Theophylline is a methylxanthine, a class of molecule similar to the xanthines caffeine and theobromine found in a normal diet. It has a half-life of 8 hours in a healthy person but decreases to 4-5 hours in people who smoke. In the blood, 40-50% of theophylline is bound to proteins.
What is methylxanthine caffeine?
Methylxanthines are a group of naturally occurring substances found in coffee, tea, chocolate and related foodstuffs. Naturally occurring theophylline (1,3-dimethylxanthine), and its ester derivative aminophylline, are the only compounds in clinical use. They are chemically similar to caffeine.
Is caffeine ionic or covalent?
3. Thus all the bonds in caffeine and the related molecules are covalent and the bond lengths can be considered as sums of the atomic covalent radii.
What is the pH of caffeine?
It is only slightly soluble in water and alcohol, but dissolves readily in chloroform. Water solutions of caffeine are essentially neutral (pH = 6.9).
What contains methylxanthine?
Methylxanthines. Methylxanthines are alkaloids that can be found in high concentrations in tea, coffee, and chocolate. Theophilline, theobromine, and caffeine are the most popular. They can be found in different concentrations in coffee, chocolate, and tea.
Are methylxanthines stimulants?
stimulants. The methylxanthines are even milder stimulants. Unlike the amphetamines and methylphenidate, which are synthetically manufactured, these compounds occur naturally in various plants and have been used by humans for many centuries. The most important of them are caffeine, theophylline, and theobromine.
What are methylxanthine derivatives?
The methylxanthine derivatives (caffeine, theophylline, and theobromine found in coffee, tea, and chocolate, respectively) are the most popular and commonly used stimulants. From: Encyclopedia of the Human Brain, 2002.
What are methylxanthine drugs?
Methylxanthine Drugs – Basic Pharmacology of Agents Used in the Treatment of Asthma. The three important methylxanthines are theophylline, theobro-mine, and caffeine. The three important methylxanthines are theophylline, theobro-mine, and caffeine. Their major source is beverages (tea, cocoa,and coffee, respectively).
What is methylxanthine found in coffee?
Caffeine (present in coffee) and theobromine (present in chocolate) are also methylxanthines. Theophylline is the most well known and most commonly used methylxanthine. At low dosages, it has an immunomodulatory, anti-inflammatory and bronchoprotective effect.
What is xanthine used for?
Xanthine is produced naturally by both plants and animals. The methylxanthines, theophylline, and dyphylline are used in the treatment of airways obstruction caused by conditions such as asthma, chronic bronchitis, or emphysema.
What is the difference between methylxanthine and theophylline?
The methylxanthines have effects on the central nervous system, kidney, and cardiac and skeletal muscle as well as smooth muscle. Of the three agents, theophylline is most selective in its smooth muscle effects, whereas caffeine has the most marked central ner-vous system effects.