One of the mysteries of the English language finally explained.
A colourless, crystalline alcohol, (H₂NC₆H₄)₃COH, which is used in making triphenylmethane dyes and whose red hydrochloride is used as a stain in microscopy.
Late 19th century; earliest use found in Journal of the Chemical Society. From para- + rosaniline, after German Pararosanilin.
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