Liquid disazo dyestuffs derived from diphenylsulphide

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal


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8 4, 8 6, 8 26, 44 59, 106 22, 208 12, 260184, 260186, C09B 3524, C09B 3522, D06P 108




Liquid dyestuffs of the general formula: ##STR1## in which y represents 0 or 1, x and z each represent a whole number in which the sum x + y + z is a whole number from 5 to 17; a process for the preparation of such dyestuffs in which the bis-diazo derivative of bis-(4-amino-phenyl)-sulphide is coupled in aqueous medium with a 2-N-alkylamino-naphthalene of the formula: ##STR2## x, y and z having the same significance as above, in the proportion of two molecules of naphthalene derivative to one molecule of bis-diazo derivative; and the use of these dyestuffs for the coloration of petroleum products, inks, fats, waxes and plastics materials.

patent: 2087597 (1937-07-01), Gatzeit
patent: 2850493 (1958-09-01), Seruto
patent: 3690809 (1972-09-01), Orelup
Beilstein, Handbuch der Organischen Chemie, vol. 16, p. 379 (1933).


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