E102 Tartrazine — is it halal?
Description
Tartrazine is a synthetic azo dye: sulphanilic acid → diazotisation (HCl, NaNO2) → coupling with 1-(4-sulphophenyl)-5-oxopyrazoline-3-carboxylic acid or its methyl/ethyl ester (then hydrolysis) → purification and isolation as the sodium salt; per JECFA also condensation of phenylhydrazine-4-sulphonic acid with dioxosuccinic or oxalacetic acid. The sources name no animal raw material in the synthesis.
Names: Тартразин · Tartrazine · التارترازين
Also known as: FD&C Yellow 5, CI 19140, E 102, E-102, Е102, INS 102, FD&C Yellow No. 5, CI Food Yellow 4, Food Yellow 4, 柠檬黄, التارترازين
Category: Colours
Regulatory source: EU 1333/2008
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