useful commercially in analgesics and dyes. Pyrazolone can exist in two isomers: 3-pyrazolone and 4-pyrazolone. These isomers can interconvert via lactam–lactim...
5 KB (512 words) - 17:48, 25 April 2024
Propyphenazone (category Pyrazolones)
2-isopropylacetoacetate (1) and phenylhydrazine (2) are combined to form the pyrazolone ring in the intermediate (3), which is alkylated with methyl iodide to...
6 KB (374 words) - 14:01, 17 July 2024
9, 1923. Markush was awarded a patent from the US Patent Office for “Pyrazolone Dye and Process of Making the Same” on August 26, 1924. In describing...
4 KB (446 words) - 22:33, 28 March 2024
Yellow 4, and trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate. Tartrazine is a commonly used coloring agent all over the...
24 KB (2,459 words) - 16:06, 15 July 2024
Ampyrone (redirect from 4-Amino-1,5-dimethyl-2-phenyl-3H-pyrazolone)
Salicylamide Salsalate Sodium salicylate Wintergreen (methyl salicylate) Pyrazolones Aminophenazone‡ Ampyrone Metamizole (dipyrone) Nifenazone Phenazone...
3 KB (103 words) - 09:15, 15 July 2024
Salicylamide Salsalate Sodium salicylate Wintergreen (methyl salicylate) Pyrazolones Aminophenazone‡ Ampyrone Metamizole (dipyrone) Nifenazone Phenazone...
118 KB (11,360 words) - 22:58, 23 August 2024
Famprofazone (category Pyrazolones)
(Gewodin, Gewolen) is a nonsteroidal anti-inflammatory agent (NSAID) of the pyrazolone series which is available over-the-counter in some countries such as Taiwan...
4 KB (235 words) - 08:34, 23 December 2023
Salicylamide Salsalate Sodium salicylate Wintergreen (methyl salicylate) Pyrazolones Aminophenazone‡ Ampyrone Metamizole (dipyrone) Nifenazone Phenazone...
165 KB (17,240 words) - 08:04, 14 August 2024
Salicylamide Salsalate Sodium salicylate Wintergreen (methyl salicylate) Pyrazolones Aminophenazone‡ Ampyrone Metamizole (dipyrone) Nifenazone Phenazone...
140 KB (13,709 words) - 18:15, 16 August 2024
Salicylamide Salsalate Sodium salicylate Wintergreen (methyl salicylate) Pyrazolones Aminophenazone‡ Ampyrone Metamizole (dipyrone) Nifenazone Phenazone...
117 KB (11,946 words) - 04:04, 13 August 2024