benzopurpurine

noun

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

often capitalized

: 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

Word History

Etymology

International Scientific Vocabulary benz- + purpurine, purpurin

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