Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Process for producing canthaxanthin
 The present invention provides a process for producing canthaxanthin by mixing .beta.-carotene with an alkali metal chlorate or an alkali metal bromate in water and an organic solvent immiscible with water; adding an iodine halide or iodide; and adding a metal iodide whereby the .beta.-carotene is oxidized to yield canthaxanthin. 
Kuraray Co., Ltd.
C
C07C
inventional
Naoyuki Toshiki Tsuyoshi Masahiko
Katayama Mori Kajiyashiki Kitayama