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Class Information
Number: 544/339
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) > The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) > 1,4-diazines > Polycyclo ring system having the diazine ring as one of the cyclos > Heptacyclo ring system having the diazine ring as one of the cyclos (e.g., indanthrones, etc.)
Description: Compounds wherein the polycyclo ring system consists of seven rings.

Sub-classes under this class:

Class Number Class Name Patents
544/340 Chalcogen attached indirectly to the heptacyclo ring system by nonionic bonding 16
544/341 Halogen, nitrogen, or carbon attached directly to the heptacyclo ring system by nonionic bonding 17

Patents under this class:

Patent Number Title Of Patent Date Issued
7662487 Azaaromatic compounds having azafluoranthene skeletons and organic electroluminescent devices made by using the same Feb. 16, 2010
7470722 Multicyclic sulfonamide compounds as inhibitors of histone deacetylase for the treatment of disease Dec. 30, 2008
7449059 Conditioning method for indanthrone pigments Nov. 11, 2008
7338553 Process, compound, ink and use Mar. 4, 2008
6962734 Sulfoderivatives of indanthrone, lyotropic liquid crystal system and anisotropic film on their base Nov. 8, 2005
6723445 Organic light-emitting devices Apr. 20, 2004
6686470 Compounds of the saframycin-ecteinascidin series, uses, and synthesis thereof Feb. 3, 2004
6562121 Conditioning of organic pigments May. 13, 2003
6486332 Fluorescent pigments Nov. 26, 2002
6291461 Stephacidin antitumor antibiotics Sep. 18, 2001
6288229 Ruthenium complex having di or tetrapyridophenazine ligand useful for use as luminescent material Sep. 11, 2001
6271401 Fluorescent anthraquinoid pigments Aug. 7, 2001
6066635 Avrainvillamide, a cytotoxic marine natural product, and derivatives thereof May. 23, 2000
5788759 .delta.-indanthrone blue pigment and manufacturing method therefor Aug. 4, 1998
5739296 Method and materials for thermostable and lightfast dichroic light polarizers Apr. 14, 1998
5438050 Indolocarbazole derivatives, processes for their preparation and compositions containing them Aug. 1, 1995
5367074 Preparation of 7,16-dichlorodianthraquinone-N,N'-dihydroazine Nov. 22, 1994
5350853 Preparation of dianthraquinone-N,N'-dihydroazine and its chlorination products Sep. 27, 1994
5286727 N-methylepiamauromine, epiamauromine and cycloechinulin antiinsectan metabolites Feb. 15, 1994
5264032 Pigment preparations Nov. 23, 1993
5180735 Cyclohexanol derivatives, production and use thereof Jan. 19, 1993
5175167 Hetarylalkenes, their preparation and intermediates for their preparation and their use Dec. 29, 1992
4816586 Delta opioid receptor antagonists Mar. 28, 1989
4801702 Process for the preparation and conditioning or organic pigments Jan. 31, 1989
4780536 Hexaazatriphenylene hexanitrile and its derivatives and their preparations Oct. 25, 1988
4692189 Novel compositions based on indanthrone blue pigments Sep. 8, 1987
4665001 Negatively chargeable blue toner comprising indanthrone dye May. 12, 1987
4628091 Process for producing dianthraquinone-N,N'-dihydrazine and its chlorination product Dec. 9, 1986
4523958 Pigment formulations and their use of pigmenting gravure printing inks and finishes Jun. 18, 1985
4451398 Dyes containing imidazolymethylene groups May. 29, 1984
4374989 Process for the manufacture of dianthraquinonyl-N,N'-dihydroazine Feb. 22, 1983
4350534 Fluid, stable formulations of copper phthalocyanine or indanthrone Sep. 21, 1982
4318848 Process for the neutralization of basic reaction compositions Mar. 9, 1982
4167634 Manufacture of a pigmentary form of .alpha.-indanthrone Sep. 11, 1979
4076713 Indanthrene dyes Feb. 28, 1978
4049715 3-[2-(4-Anisidino)phenyl]-1-phenyl-1-propiophenones and propanols Sep. 20, 1977
4045414 New di-substituted meta-terphenyl compounds and resulting polymers Aug. 30, 1977
3944614 2,2'-Bis(phenylethynyl-5,5'-diaminobenzidine Mar. 16, 1976

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