carmoisine
Azorubine is a red solid. It is mainly used in foods that are heat-treated after fermentation. It is an azo dye consisting of two naphthalene subunits. In the US, this color was listed in 1939 as D&C Red No. Reference standards of Carmoisine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
stdClass Object
(
[pname] => Carmoisine
[catalogue_number] => PA 56 06000
[category_ids] => ,80,78,70,82,88,
[chemical_name] =>
[weight] => 502.43
[form] => C20H12N2NaO7S2
[cas] => 3567-69-9
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Catalogue No.:PA 56 06000
Molecular Formula : C20H12N2NaO7S2
Molecular Weight : 502.43