Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to ES0204404ApriorityCriticalpatent/ES204404A1/en
Publication of ES204404A1publicationCriticalpatent/ES204404A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Process for the preparation of trisazo dyes characterized in that diazodisazo compounds are combined with amines of the general formula ** in which r1 represents the radical of an oxybenzene-o-carboxylic acid r2 the radical of an intermediate component of the series of benzoles or naphthalenes, preferably one containing azo group adjacent to it, which links r2 with r3 a group that is suitable for particular in the formation of metal complexes and r3 the radical linked at position-6 to the azo group of a 5-oxy-naphthalene- 7-sulphonic which is crimped in at least one of the positions -1- and -2- directly or preferably by a bridge link to the group-nh2/ -diazotable with azocomponents that alone they are suitable for the formation of complex metal compounds. (Machine-translation by Google Translate, not legally binding)
ES0204404A1952-07-031952-07-03A procedure for the preparation of trisazocolorantes (Machine-translation by Google Translate, not legally binding)
ExpiredES204404A1
(en)