Is Benzenesulfonic acid 2,2'-(1,2-ethenediyl)bis-5-nitro- disodium salt reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid sodium salt vegan?

Direct Orange 39 is also known as Benzenesulfonic acid 2,2'-(1,2-ethenediyl)bis-5-nitro- disodium salt reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid sodium salt.

CI 40215 is a synthetic stilbene colorant produced by the condensation of 4,4'-dinitro-2,2'-stilbenedisulfonic acid with 4-[(4-aminophenyl)azo]benzenesulfonic acid. It is a fully synthetic dye used as a colorant.

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