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Congo Red

nounverified·updated May 18, 2026

a red-brown azo dye especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions)

MWE

Classifications

Entity Type

Unknownauthoritativeglossary_import_default_pending_classifier
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
Congo Reds
possessive
Congo Red's
pluralpossessive
Congo Reds'