variants or less commonly benzopurpurin
plural -s
often capitalized
: any of several closely related direct disazo red dyes: such as
or benzopurpurine 4B : a red dye made from ortho-tolidine and naphthionic acid and used on cellulosic textiles and as an indicator and plasma stain
or benzopurpurine 10B : a carmine-red dye made from ortho-dianisidine and naphthionic acid

Word History


International Scientific Vocabulary benz- + purpurine, purpurin

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Dictionary Entries Near benzopurpurine

Cite this Entry

“Benzopurpurine.” Dictionary, Merriam-Webster, Accessed 23 Sep. 2023.

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