phenosafranine
/ˌfiːnə(ʊ)ˈsafrəniːn/ /ˌfɛnə(ʊ)ˈsafrəniːn/(also phenosafranin)
noun
A synthetic red azo dye, used in photography as a desensitizer; 3,7-diamino-5-phenylphenazinium chloride, C18H15N4Cl.
Origin
Late 19th century; earliest use found in Journal of the Chemical Society. From pheno- + safranine, after German Phenosafranin.