• WordNet 3.6
    • n saffranine any of a class of chiefly red organic dyes
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Century Dictionary and Cyclopedia
    • n saffranine One of a class of dyes made by oxidizing a mixture of a paraphenylenediamine derivative and a monamine. The saffranines form metallic-green crystals and dye fabrics orange, red, or violet. The simplest, phenosaffranine, C18H15-N4Cl, is made from paraphenylenediamine and aniline. Tolusaffranine, C21H21N4Cl, is made from paratoluylenediamine and toluidine. Also safranine.
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In literature:

Saffranine is detected by the action of hydrochloric acid, which turns it to a beautiful blue; the red color is restored by washing in water.
"Scientific American Supplement, No. 363, December 16, 1882" by Various
Saffranine Prima, 1 lb.
"The Dyeing of Woollen Fabrics" by Franklin Beech
Absorption of colouring } Saffranine 0.7 0.0 matters at 100 deg.
"Researches on Cellulose" by C. F. Cross