PROCESS FOR THE PREPARATION OF SODIUM 4-(2-((1E,3E,5E,7Z)-7-(1,1-DIMETHYL-3-(4-SULFONATOBUTYL)-1H-BENZO[e]INDOL-2(3H)-YLIDENE) HEPTA-1,3,5-TRIENYL)-1,1-DIMETHYL-1H-BENZO[e]INDOLIUM-3-YL) BUTANE-1-SULFONATE (INDOCYANINE GREEN)
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United States of America Patent
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Nov 7, 2019
app pub date -
Apr 30, 2019
filing date -
May 2, 2018
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Abstract
A process for the preparation of substantially pure Indocyanine green of formula with purity greater than 99.0% is provided. More particularly, the embodiments relate to the process for the preparation of Indocyanine green of formula and its intermediates thereof. It further provides crystalline form I of Indocyanine green of formula and process thereof.
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