acriflavineArticle Free Pass acriflavine, dye obtained from coal
tar, introduced as an antiseptic in 1912 by the German medical-
research worker Paul Ehrlich and used extensively in World War I
to kill the parasites that cause sleeping sickness. The
hydrochloride and the less irritating base, neutral acriflavine,
both are odourless, reddish-brown powders used in dilute aqueous
solutions primarily as topical antiseptics or given orally as
urinary antiseptics. Once used in the treatment of gonorrhea,
acriflavine has been replaced by the antibiotics. What made you
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