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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Application filed by IG Farbenindustrie AGfiledCriticalIG Farbenindustrie AG
Application grantedgrantedCritical
Publication of FR677208ApublicationCriticalpatent/FR677208A/fr
C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
C07D495/04—Ortho-condensed systems
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR677208D1928-06-221929-06-22Procédé de préparation de colorants à cuve de la série de la di-thionaphténylènequinone
ExpiredFR677208A
(fr)