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    —— 6-[(2Z)-2-[[(3Z)-3-[[3-(5-carboxypentyl)-3-methyl-5-sulfoindol-2-yl]methylidene]-2-hydroxy-4-oxocyclobuten-1-yl]methylidene]-3-methyl-5-sulfo-1H-indol-3-yl]hexanoic acid —— C36H40N2O12S2
    6-[(2Z)-2-[[(3Z)-3-[[3-(5-carboxypentyl)-3-methyl-5-sulfoindol-2-yl]methylidene]-2-hydroxy-4-oxocyclobuten-1-yl]methylidene]-3-methyl-5-sulfo-1H-indol-3-yl]hexanoic acid
    —— (6Z)-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one;titanium(2+);dichloride —— C7H6Cl2N4OTi
    (6Z)-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one;titanium(2+);dichloride
    —— 6-(3-bromophenyl)-2-(4-fluorophenyl)-1-methyl-1H-imidazo[1,2-a]imidazole —— C18H13BrFN3
    6-(3-bromophenyl)-2-(4-fluorophenyl)-1-methyl-1H-imidazo[1,2-a]imidazole
    —— (6E)-6-[4,6-bis(4-methylphenyl)-1H-1,3,5-triazin-2-ylidene]-2-(3-dodecoxy-2-hydroxypropoxy)cyclohexa-2,4-dien-1-one —— C38H49N3O4
    (6E)-6-[4,6-bis(4-methylphenyl)-1H-1,3,5-triazin-2-ylidene]-2-(3-dodecoxy-2-hydroxypropoxy)cyclohexa-2,4-dien-1-one
    —— (6Z)-6-[4,6-bis(4-methylphenyl)-1H-1,3,5-triazin-2-ylidene]-3-(2-hexoxyethoxy)cyclohexa-2,4-dien-1-one —— C31H35N3O3
    (6Z)-6-[4,6-bis(4-methylphenyl)-1H-1,3,5-triazin-2-ylidene]-3-(2-hexoxyethoxy)cyclohexa-2,4-dien-1-one
    —— (6E)-2,4-ditert-butyl-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one;titanium;hydrochloride —— C15H23ClN4OTi
    (6E)-2,4-ditert-butyl-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one;titanium;hydrochloride
    —— (6E)-6-[5-(2,4,6,6a-tetrahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl)-1H-pyrimidin-2-ylidene]cyclohexa-2,4-dien-1-one —— C16H16N4O
    (6E)-6-[5-(2,4,6,6a-tetrahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl)-1H-pyrimidin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (6E)-6-[5-(2-methyl-1,4,6,6a-tetrahydropyrrolo[3,4-c]pyrrol-5-yl)-1H-pyrimidin-2-ylidene]cyclohexa-2,4-dien-1-one —— C17H18N4O
    (6E)-6-[5-(2-methyl-1,4,6,6a-tetrahydropyrrolo[3,4-c]pyrrol-5-yl)-1H-pyrimidin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (6E)-3-hydroxy-4-(pentyldiazenyl)-6-(pentylhydrazinylidene)cyclohexa-2,4-dien-1-one —— C16H26N4O2
    (6E)-3-hydroxy-4-(pentyldiazenyl)-6-(pentylhydrazinylidene)cyclohexa-2,4-dien-1-one
    —— 6,8-dimethyl-1-[3-(2-phenylethoxy)phenyl]-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole —— C27H28N2O
    6,8-dimethyl-1-[3-(2-phenylethoxy)phenyl]-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole
    —— 6-[(2Z)-2-[[(3Z)-3-[[1-(5-carboxypentyl)-1-methyl-6,8-disulfobenzo[e]indol-2-yl]methylidene]-2-hydroxy-4-oxocyclobuten-1-yl]methylidene]-1-methyl-6,8-disulfo-3H-benzo[e]indol-1-yl]hexanoic acid —— C44H44N2O18S4
    6-[(2Z)-2-[[(3Z)-3-[[1-(5-carboxypentyl)-1-methyl-6,8-disulfobenzo[e]indol-2-yl]methylidene]-2-hydroxy-4-oxocyclobuten-1-yl]methylidene]-1-methyl-6,8-disulfo-3H-benzo[e]indol-1-yl]hexanoic acid
    —— (6Z)-3-[[4-amino-6-(2-chlorophenyl)-5-fluoropyrimidin-2-yl]amino]-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one —— C17H12ClFN8O
    (6Z)-3-[[4-amino-6-(2-chlorophenyl)-5-fluoropyrimidin-2-yl]amino]-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one
    —— (6Z)-6-[(hydroxyamino)methylidene]-4-[[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]methyl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one —— C17H16N4O6
    (6Z)-6-[(hydroxyamino)methylidene]-4-[[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]methyl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one
    —— (6Z)-4-chloro-6-(1,2-dihydrotetrazol-5-ylidene)-2-[3-[4-(2-quinolin-2-ylethenyl)phenyl]prop-2-enoyl]cyclohexa-2,4-dien-1-one —— C27H18ClN5O2
    (6Z)-4-chloro-6-(1,2-dihydrotetrazol-5-ylidene)-2-[3-[4-(2-quinolin-2-ylethenyl)phenyl]prop-2-enoyl]cyclohexa-2,4-dien-1-one
    —— (6E,8E,10E)-azocino[3,4-g]pteridine-2,4,6,8-tetramine —— C11H11N9
    (6E,8E,10E)-azocino[3,4-g]pteridine-2,4,6,8-tetramine
    —— (6Z)-6-[(hydroxyamino)methylidene]-4-[1-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]-1-phenylethyl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one —— C24H22N4O6
    (6Z)-6-[(hydroxyamino)methylidene]-4-[1-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]-1-phenylethyl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one
    —— (6Z)-6-[(hydroxyamino)methylidene]-4-[2-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]pentan-2-yl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one —— C21H24N4O6
    (6Z)-6-[(hydroxyamino)methylidene]-4-[2-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]pentan-2-yl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one
    —— (6Z)-6-(4,6-diphenyl-1H-1,3,5-triazin-2-ylidene)-3-hexan-3-yloxycyclohexa-2,4-dien-1-one —— C27H27N3O2
    (6Z)-6-(4,6-diphenyl-1H-1,3,5-triazin-2-ylidene)-3-hexan-3-yloxycyclohexa-2,4-dien-1-one
    —— 6-[(2Z)-2-[[(3E)-3-[(3,3-dimethyl-5-sulfoindol-2-yl)methylidene]-2-hydroxy-4-oxocyclobuten-1-yl]methylidene]-3-methyl-5-sulfo-1H-indol-3-yl]hexanoic acid —— C31H32N2O10S2
    6-[(2Z)-2-[[(3E)-3-[(3,3-dimethyl-5-sulfoindol-2-yl)methylidene]-2-hydroxy-4-oxocyclobuten-1-yl]methylidene]-3-methyl-5-sulfo-1H-indol-3-yl]hexanoic acid
    —— (6E)-6-[(10Z,14Z,20E)-10,15-bis(2-hydroxy-4-methoxyphenyl)-20-(4-methoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-21,22,23,24-tetrahydroporphyrin-5-ylidene]-3-methoxycyclohexa-2,4-dien-1-one —— C48H38N4O8
    (6E)-6-[(10Z,14Z,20E)-10,15-bis(2-hydroxy-4-methoxyphenyl)-20-(4-methoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-21,22,23,24-tetrahydroporphyrin-5-ylidene]-3-methoxycyclohexa-2,4-dien-1-one
    —— (6Z)-6-[(hydroxyamino)methylidene]-4-[3-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]pentan-3-yl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one —— C21H24N4O6
    (6Z)-6-[(hydroxyamino)methylidene]-4-[3-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]pentan-3-yl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one
    —— (6Z)-3-chloro-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one —— C7H5ClN4O
    (6Z)-3-chloro-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one
    —— (6E)-6-[5-(2,3,3a,4,6,6a-hexahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl)-1H-pyrimidin-2-ylidene]cyclohexa-2,4-dien-1-one —— C16H18N4O
    (6E)-6-[5-(2,3,3a,4,6,6a-hexahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl)-1H-pyrimidin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— [6-[6-[2-(Dimethylamino)phenyl]-4-phenylpyran-2-ylidene]cyclohexa-2,4-dien-1-ylidene]-dimethylazanium;iodide —— C27H27IN2O
    [6-[6-[2-(Dimethylamino)phenyl]-4-phenylpyran-2-ylidene]cyclohexa-2,4-dien-1-ylidene]-dimethylazanium;iodide
    —— 6-(2-naphthalen-2-ylethenyl)-5-nitro-1H-pyrimidine-2,4-dione —— C16H11N3O4
    6-(2-naphthalen-2-ylethenyl)-5-nitro-1H-pyrimidine-2,4-dione
    —— (6E)-2-amino-6-(2-hydroxy-6-oxocyclohexa-2,4-dien-1-ylidene)-4-[1-[(2-methylpropan-2-yl)oxycarbonyl]piperidin-3-yl]-1H-pyridine-3-carboxylic acid —— C22H27N3O6
    (6E)-2-amino-6-(2-hydroxy-6-oxocyclohexa-2,4-dien-1-ylidene)-4-[1-[(2-methylpropan-2-yl)oxycarbonyl]piperidin-3-yl]-1H-pyridine-3-carboxylic acid
    —— 6-(4-Bromophenyl)-3,3-dimethyl-7-phenyl-2,5-dihydroimidazo[2,1-b][1,3]thiazol-4-ium-6-ol —— C19H20BrN2OS+
    6-(4-Bromophenyl)-3,3-dimethyl-7-phenyl-2,5-dihydroimidazo[2,1-b][1,3]thiazol-4-ium-6-ol
    —— (6Z)-6-(4,6-diamino-1H-pyrimidin-2-ylidene)cyclohexa-2,4-dien-1-one —— C10H10N4O
    (6Z)-6-(4,6-diamino-1H-pyrimidin-2-ylidene)cyclohexa-2,4-dien-1-one
    —— [6-[3-(7-acetamido-1-methyl-3,4-dihydro-2H-quinolin-6-yl)-2-hydroxy-4-oxocyclobut-2-en-1-ylidene]-1-methyl-3,4-dihydro-2H-quinolin-1-ium-7-yl]-(1-hydroxyethylidene)azanium;dihydroxide —— C28H34N4O6
    [6-[3-(7-acetamido-1-methyl-3,4-dihydro-2H-quinolin-6-yl)-2-hydroxy-4-oxocyclobut-2-en-1-ylidene]-1-methyl-3,4-dihydro-2H-quinolin-1-ium-7-yl]-(1-hydroxyethylidene)azanium;dihydroxide
    —— (6E)-4-[4-(benzimidazol-1-ylmethyl)phenyl]-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one —— C21H16N6O
    (6E)-4-[4-(benzimidazol-1-ylmethyl)phenyl]-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one
    —— (6Z,8Z,10Z)-6,11-bis(1H-indol-3-yl)-2,3,4,4a,5,11b-hexahydro-1H-cycloocta[b]indole —— C30H27N3
    (6Z,8Z,10Z)-6,11-bis(1H-indol-3-yl)-2,3,4,4a,5,11b-hexahydro-1H-cycloocta[b]indole
    —— (6-bromopyrazolo[1,5-a]pyridin-2-yl)-[(1E)-1-(1,2-dihydrotetrazol-5-ylidene)-4-methyl-6,7-dihydro-4H-pyrrolo[3,4-c]pyridin-5-yl]methanone —— C17H15BrN8O
    (6-bromopyrazolo[1,5-a]pyridin-2-yl)-[(1E)-1-(1,2-dihydrotetrazol-5-ylidene)-4-methyl-6,7-dihydro-4H-pyrrolo[3,4-c]pyridin-5-yl]methanone
    —— 6,7-Dichloro-2-(2,3-dimethylphenyl)benzo[de]isoquinoline-1,3-dione —— C20H13Cl2NO2
    6,7-Dichloro-2-(2,3-dimethylphenyl)benzo[de]isoquinoline-1,3-dione
    —— (6Z)-6-[(hydroxyamino)methylidene]-4-[2-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]propan-2-yl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one —— C19H20N4O6
    (6Z)-6-[(hydroxyamino)methylidene]-4-[2-[(3Z)-3-[(hydroxyamino)methylidene]-5-[(Z)-hydroxyiminomethyl]-4-oxocyclohexa-1,5-dien-1-yl]propan-2-yl]-2-[(Z)-hydroxyiminomethyl]cyclohexa-2,4-dien-1-one
    —— 6-benzyl-4-(4-ethoxyphenyl)-1-methyl-4,7-dihydro-3H-pyrrolo[3,4-d]pyrimidine-2,5-dione —— C22H23N3O3
    6-benzyl-4-(4-ethoxyphenyl)-1-methyl-4,7-dihydro-3H-pyrrolo[3,4-d]pyrimidine-2,5-dione
    —— 6,7-dimethoxy-3-(4-methoxyphenyl)-2-methyl-N-(6-methylpyridin-1-ium-2-yl)-1-oxo-3,4-dihydroisoquinoline-4-carboxamide —— C26H28N3O5+
    6,7-dimethoxy-3-(4-methoxyphenyl)-2-methyl-N-(6-methylpyridin-1-ium-2-yl)-1-oxo-3,4-dihydroisoquinoline-4-carboxamide
    —— 6-[2-(4-Chlorophenyl)-2-oxoethoxy]-2-[(4-nitrophenyl)methylidene]-1-benzofuran-3-one —— C23H14ClNO6
    6-[2-(4-Chlorophenyl)-2-oxoethoxy]-2-[(4-nitrophenyl)methylidene]-1-benzofuran-3-one
    —— 6,7-dimethoxy-3-(4-methoxyphenyl)-2-methyl-N-(6-methylpyridin-2-yl)-1-oxo-3,4-dihydroisoquinoline-4-carboxamide —— C26H27N3O5
    6,7-dimethoxy-3-(4-methoxyphenyl)-2-methyl-N-(6-methylpyridin-2-yl)-1-oxo-3,4-dihydroisoquinoline-4-carboxamide
    —— 6,7-dimethoxy-N-(2-methoxyphenyl)-3-(4-methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxamide —— C27H28N2O6
    6,7-dimethoxy-N-(2-methoxyphenyl)-3-(4-methoxyphenyl)-2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxamide
    —— 6-[[2,5-Dimethyl-1-(4-methylphenyl)pyrrol-3-yl]methylidene]-5-imino-2-(phenoxymethyl)-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one —— C26H23N5O2S
    6-[[2,5-Dimethyl-1-(4-methylphenyl)pyrrol-3-yl]methylidene]-5-imino-2-(phenoxymethyl)-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one
    —— 6-bromo-2-[(2-chloro-6-fluorobenzyl)sulfanyl]-5-methyl-1H-imidazo[4,5-b]pyridine —— C14H10BrClFN3S
    6-bromo-2-[(2-chloro-6-fluorobenzyl)sulfanyl]-5-methyl-1H-imidazo[4,5-b]pyridine
    —— (6,7-dimethoxy-1-thiophen-2-yl-3,4-dihydro-1H-isoquinolin-2-yl)-[4-(trifluoromethyl)phenyl]methanone —— C23H20F3NO3S
    (6,7-dimethoxy-1-thiophen-2-yl-3,4-dihydro-1H-isoquinolin-2-yl)-[4-(trifluoromethyl)phenyl]methanone
    —— (6E)-6-[(10Z,14Z,20E)-10,15-bis[4-(dimethylamino)-2-hydroxyphenyl]-20-[4-(dimethylamino)-6-oxocyclohexa-2,4-dien-1-ylidene]-21,22,23,24-tetrahydroporphyrin-5-ylidene]-3-(dimethylamino)cyclohexa-2,4-dien-1-one —— C52H50N8O4
    (6E)-6-[(10Z,14Z,20E)-10,15-bis[4-(dimethylamino)-2-hydroxyphenyl]-20-[4-(dimethylamino)-6-oxocyclohexa-2,4-dien-1-ylidene]-21,22,23,24-tetrahydroporphyrin-5-ylidene]-3-(dimethylamino)cyclohexa-2,4-dien-1-one
    —— (6Z)-3-[[4-amino-6-(2-chlorophenyl)-5-fluoropyrimidin-2-yl]amino]-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one;hydrochloride —— C17H13Cl2FN8O
    (6Z)-3-[[4-amino-6-(2-chlorophenyl)-5-fluoropyrimidin-2-yl]amino]-6-(1,2-dihydrotetrazol-5-ylidene)cyclohexa-2,4-dien-1-one;hydrochloride
    —— (6E)-3-butoxy-6-[(4Z)-4-(4-butoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(4-methoxyphenyl)-1H-1,3,5-triazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C30H33N3O5
    (6E)-3-butoxy-6-[(4Z)-4-(4-butoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(4-methoxyphenyl)-1H-1,3,5-triazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (6Z)-3-octoxy-6-[(4E)-4-(4-octoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(4-phenoxyphenyl)-1H-1,3,5-triazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C43H51N3O5
    (6Z)-3-octoxy-6-[(4E)-4-(4-octoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(4-phenoxyphenyl)-1H-1,3,5-triazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (6Z)-4-but-3-en-2-yl-5-fluoro-6-(1H-pyrimidin-2-ylidene)cyclohexa-2,4-dien-1-one —— C14H13FN2O
    (6Z)-4-but-3-en-2-yl-5-fluoro-6-(1H-pyrimidin-2-ylidene)cyclohexa-2,4-dien-1-one
    —— (6S)-2-(hydroxymethyl)-6-[2,3,5,6-tetrafluoro-4-[20-[2,3,5,6-tetrafluoro-4-[(2R,5R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanylphenyl]-10,15-bis[2,3,5,6-tetrafluoro-4-[(2S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanylphenyl]-21,24-dihydroporphyrin-5-yl]phenyl]sulfanyloxane-3,4,5-triol —— C68H54F16N4O20S4
    (6S)-2-(hydroxymethyl)-6-[2,3,5,6-tetrafluoro-4-[20-[2,3,5,6-tetrafluoro-4-[(2R,5R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanylphenyl]-10,15-bis[2,3,5,6-tetrafluoro-4-[(2S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanylphenyl]-21,24-dihydroporphyrin-5-yl]phenyl]sulfanyloxane-3,4,5-triol
    —— (6Z)-3-hexoxy-6-[(4E)-4-(4-hexoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(2,4,6-trimethylphenyl)-1H-1,3,5-triazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C36H45N3O4
    (6Z)-3-hexoxy-6-[(4E)-4-(4-hexoxy-6-oxocyclohexa-2,4-dien-1-ylidene)-6-(2,4,6-trimethylphenyl)-1H-1,3,5-triazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6,7-dimethyl-3-(trifluoromethyl)-1H-pyrazolo[4,3-c]pyridazine —— C8H7F3N4
    6,7-dimethyl-3-(trifluoromethyl)-1H-pyrazolo[4,3-c]pyridazine