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出典:Wiktionary
indigocarmine (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/19 05:55 UTC 版)
Indigo carmine, or 5,5'-indigodisulfonic acid sodium salt, also known as indigotine or FD&C Blue #2 is a pH indicator with the chemical formula C16H8N2Na2O8S2. It is approved for use as a food colorant in the USA and the EU and has the E number E132.
indigocarmine