ALLURA RED AC

Описание

FD & C Red No. 40 is principally the disodium salt of 6-hydroxy5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]2-napthalenesulfonic acid.
The colorant is a red powder that dissolves in water to give a solution red at neutrality and in acid and dark red in base. It is slightly soluble in 95% ethanol.
FD & C Red No. 40 is used in gelatins, puddings, custards, alcoholic and nonalcoholic beveraes, sauces, toppings, candy sugars, frostings, fruits, juices, dairy products, bakery products, jams, jellies, condiments, meat, and poultry. FD & C Red No. 40 is also used for coloring drugs and cosmetics.1 .

Химические свойства

Red powder

Использование

Allura Red AC (FD&C Red #40) is a colorant. It has good stability to ph changes from ph 3 to 8, showing no appreciable change. It has excellent solubility in water with a solubility of 22 g/100 ml at 25°c. It has very good stability to light, fair to poor stability to oxidation, good stability to heat, and shows no appreciable change in stability in 10% sugar systems. It has a yellowish-red hue and has a very good tinctorial strength. It has very good compatibility with food components and is used in beverages, desserts, candy, confections, cereals, and ice cream. The common name is allura? red ac.

Подготовка

4-Amino-5-methoxy-2-methylbenzenesulfonic acid diazo, and 6-Hydroxynaphthalene-2-sulfonic acid?coupling.