|
Aminopyridine
Aminopyridine may refer to any of several chemical compounds: * 2-Aminopyridine * 3-Aminopyridine 3-Aminopyridine is an aminopyridine. It is a colorless solid. Preparation 3-Aminopyridine is prepared by heating nicotinamide with sodium hypobromite which is in turn prepared ''in situ'' by the reaction of sodium hydroxide and bromine at 70&nb ... * 4-Aminopyridine (4-AP), also known as fampridine or dalfampridine {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-Aminopyridine
2-Aminopyridine is an organic compound with the formula H2NC5H4N. It is one of three isomeric aminopyridines. It is a colourless solid that is used in the production of the drugs piroxicam, sulfapyridine, tenoxicam, and tripelennamine. It is produced by the reaction of sodium amide with pyridine, the Chichibabin reaction. Structure Although 2-hydroxypyridine converts significantly to the pyridone tautomer, the related imine tautomer (HNC5H4NH) is less important for 2-aminopyridine. Toxicity The acute toxicity is indicated by the LD50 In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a toxin, radiation, or pathogen. The value of LD50 for a substance is the ... = 200 mg/kg (rat, oral). References External links MSDS {{DEFAULTSORT:Aminopyridine, 2- Aminopyridines 2-Pyridyl compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3-Aminopyridine
3-Aminopyridine is an aminopyridine. It is a colorless solid. Preparation 3-Aminopyridine is prepared by heating nicotinamide with sodium hypobromite which is in turn prepared ''in situ'' by the reaction of sodium hydroxide and bromine at 70 °C. : It can be used in the synthesis of organic ligand 3-pyridylnicotinamide. Troxipide is another synthesis that uses 3-AP. Toxicity The acute toxicity is indicated by the LD50 In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a toxin, radiation, or pathogen. The value of LD50 for a substance is the ... = 178 mg/kg (quail, oral). References {{DEFAULTSORT:Aminopyridine, 3- Aminopyridines 3-Pyridyl compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |