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
Original Assignee
Ciba Geigy AG
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Filing date
Publication date
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Priority to ES344802ApriorityCriticalpatent/ES344802A1/en
Publication of ES344802A1publicationCriticalpatent/ES344802A1/en
Process for the preparation of new organic dyes, characterized by introducing into the organic dyes, at least once, the radical of a pyrimidyl- (5) -aryl-carboxylic acid or -sulfonic acid, at most dihalogenated, containing in position 4 a halogen atom and in position 6 a halogen atom or other negative substituent. (Machine-translation by Google Translate, not legally binding)
ES344802A1967-09-061967-09-06Procedure for the preparation of new organic colorants. (Machine-translation by Google Translate, not legally binding)
ExpiredES344802A1
(en)
A procedure for the preparation of a 1,2 alpha-methylen -6,7 alpha-dihalometilen-20-espirox-4-eno 3-oxygenate. (Machine-translation by Google Translate, not legally binding)