noun, often capitalized
ben·​zo·​pur·​pu·​rine | \ ¦ben-(ˌ)zō-ˈpər-pyə-rən, -ˌrēn \
variants: or less commonly benzopurpurin \ ¦ben-​(ˌ)zō-​ˈpər-​pyə-​rən \
plural -s

Definition of benzopurpurine

: any of several closely related direct disazo red dyes: such as
a 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
b or benzopurpurine 10B : a carmine-red dye made from ortho-dianisidine and naphthionic acid

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History and Etymology for benzopurpurine

International Scientific Vocabulary benz- + purpurine, purpurin

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Cite this Entry

“Benzopurpurine.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2021.

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