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