Edible compositions colored with (2-alkoxy-4-sulfonyl-5-alkyphen

Details Edible compositions colored with (2-alkoxy-4-sulfonyl-5-alkyphen Edible compositions colored with (2-alkoxy-4-sulfonyl-5-alkyphen

1986-07-18

1987-11-17

Hunter, Jeanette

Food or edible material: processes, compositions, and products

Products per se, or processes of preparing or treating...

Specific dye or pigment per se or compositions containing same

426260, A23L 1275

Patent

active

047073730

ABSTRACT:
Salts of phenylazonaphthyl sulfonic acids useful as blue-red colorants for textile fabrics, cellulosic fibers and edible compositions are prepared by diazotizing aniline sulfonic acid and coupling the resulting diazo compound to a 1-hydroxynaphthalene mono- or disulfonic acid.

REFERENCES:
patent: 3519617 (1970-07-01), Rast et al.
patent: 3578652 (1971-05-01), Rast et al.
patent: 3640733 (1972-02-01), Rast et al.
Colour Index 14700.
Colour Index 16185.

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