Published October 31, 1966 | Version v1
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Studies on Indigoid Dyes. Part VIII. 2-(7-Iodo) thionaphthene 9'-phenanthrene lndigos

Description

Several dyes have been prepared by the condensation of 7-iodothioindoxyl with phenanthraquinone and substituted phenanthraquinones with the object of comparing the colour and chemical constitution of these dyes with analogous dyes derived from 5-iodothioindoxyl, reported earlier.

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