Non User
  Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Business
Non User
 Industries Finance Tax

Home > Alkaloid


An alkaloid is a nitrogenous organic molecule that has a pharmacological effect on humans and other animals. The name derives from the word alkaline; originally, the term was used to describe any nitrogen-containing base (an amine in modern terms). Alkaloids are found as secondary metabolites in plants (e.g., in potatoes and tomatoes), animals (e.g., in shellfish) and fungi), and can be extracted from their sources by treatment with acids (usually hydrochloric acidProperties General Name Hydrogen chloride Chemical formula H Cl Appearance Colourless liquid Physical Formula weight 36. 5 amu Melting point 203. 15 K (-70 °C) Boiling point 382 K (109 °C) Density 1. 2 ×103 kg/ m3 (liquid) Solubility 70 g in 100g water Th or sulfuric acidProperties General Name Sulfuric acid Chemical formula H SO Appearance Colorless liquid Physical Formula weight 98. 1 amu Melting point 283 K (10 °C) Boiling point 610 K (337 °C) Density 1. 8 ×103 kg/ m3 Solubility miscible Thermochemistry ΔH0 -814, though organic acids such as maleic acid and citric acidProperties General Name Citric acid Chemical formula C H O Formula weight 192. 13 amu Synonyms 2-hydroxy-1,2,3-propanetricarboxylic acid CAS number 77-92-9 Phase behavior Melting point 426 K (153 °C) Thermal decomposition temperature 448 K (175°C) Acid-ba are sometimes used).

Even though many alkaloids are poisonThis article is about the dangerous substance. For the band see Poison. skull and crossbones symbol traditionally used to label a poisonous substance. In the context of biology, poisons are substances that cause injury, illness, or death to organisms, usuous (such as strychnineStrychnine FormulaCHNO LD1 mg/kg Molecular mass334. 41 g/mol CAS number57-24-9 SMILES(see below) Strychnine (pronounced strik'-neen (British) or strik'-nine (U. is a very toxic ( LD 1 mg/kg), colourless crystalline alkaloid used as a pesticide, particular or coniineConiine is a poisonous alkaloid found in poison hemlock. Its chemical formula is C H N.), some are used in medicine as analgesicAn analgesic is any member of the diverse group of drugs used to relieve pain. Analgesic drugs include the nonsteroidal anti-inflammatory drugs (NSAIDs) such as the salicylates, narcotic drugs such as morphine, and synthetic drugs with narcotic propertiess (pain relievers) or anaesthetics, particularly morphine and codeine. Most alkaloids have a very bitter taste.

Alkaloid classifications

Alkaloids are usually classified by their common molecular precursors, based on the biological pathway used to construct the molecule. When not much was known about the biosynthesis of alkaloids, they were grouped under the names of known compounds, even some non-nitrogenous ones (since those molecules' structures appear in the finished product; the opium alkaloids are sometimes called " phenanthrenes", for example), or by the plants or animals they were isolated from. When more is learned about a certain alkaloid, the grouping is changed to reflect the new knowledge, usually taking the name of a biologically-important amine that stands out in the synthesis process.



Politics Business Finance
Alkaloid Alkaloids Group Acid Animals Compounds

Topics: Alkaloid Alkaloids Group Acid Animals Compounds Coniine...

AlkaloidAn alkaloid is a nitrogenous organic molecule that has a pharmacological effect on humans and other animals. The name derives from the word alkaline; originally, the term was used to describe any nitrogen-containing base (an amine in modern terms). Alkalo  


Non User