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Kodak Pathe SA
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Kodak Pathe SA
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Publication of FR1075141ApublicationCriticalpatent/FR1075141A/fr
C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
C07D221/04—Ortho- or peri-condensed ring systems
C07D221/06—Ring systems of three rings
C07D221/10—Aza-phenanthrenes
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR1075141D1950-12-291951-12-29Nouveaux colorants, procédé pour leur préparation et leurs applications
ExpiredFR1075141A
(fr)