Re: Where does the Food Coloring Red No. 40 come from?

Date: Sun Apr 2 18:17:08 2000
Posted By: Chris Cerrato, Staff, Compounding Dept., C. L. Hauthaway & Sons
Area of science: Chemistry
ID: 954297958.Ch

Message:


Red no. 40 is specifically 2-NAPHTHALENESULFONIC ACID, 6-HYDROXY-5-((2-
METHOXY-5-METHYL-4-SULFOPHENYL)AZO)-, DISODIUM SALT. It is a coal tar 
extract. Someone who has already done a lot of research on it reports it 
here:  www.spidercreations.com/brian/reddye/

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