| 1 | 1337893-74-9 | 四苯-5,12-二羧酸,TETRACENE-5,12-DICARBOXYLIC ACID | NULL | C20H12O4
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| 2 | | AURORA 47 | AURORA 47 | C20H12O4
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| 3 | 159933-90-1 | palmarumycin CP(1) | palmarumycin CP(1) | C20H12O4
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| 4 | | benzo(a)pyrene tetrol | benzo(a)pyrene tetrol | C20H12O4
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| 5 | 79135-88-9 | 7,7'-vinylenebis-2-benzopyrone | 7,7'-vinylenebis-2-benzopyrone | C20H12O4
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| 6 | 31964-91-7 | | 9H-Xanthen-9-one, 2-(2-hydroxybenzoyl)- | C20H12O4
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| 7 | 18596-07-1 | Pyrano[4,3-c]pyran-1,5-dione, 3,7-diphenyl- | Pyrano[4,3-c]pyran-1,5-dione, 3,7-diphenyl- | C20H12O4
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| 8 | 53992-30-6 | phenyl 3-oxo-3H-benzo[f]chromene-2-carboxylate | phenyl 3-oxo-3H-benzo[f]chromene-2-carboxylate | C20H12O4
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| 9 | | 3,7-Diphenyl-1H,5H-pyrano[4,3-c]pyran-1,5-dione | 3,7-Diphenyl-1H,5H-pyrano[4,3-c]pyran-1,5-dione | C20H12O4
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| 10 | 371216-22-7 | 3-(4-methylbenzoyl)naphtho[1,2-b]furan-4,5-dione | 3-(4-methylbenzoyl)naphtho[1,2-b]furan-4,5-dione | C20H12O4
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| 11 | 19817-49-3 | 5a,11b-Dihydro-6,11-dihydroxydibenzo[b,h]biphenylene-5,12-dione | 5a,11b-Dihydro-6,11-dihydroxydibenzo[b,h]biphenylene-5,12-dione | C20H12O4
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| 12 | 14734-20-4 | Dibenzo[b,h]biphenylene-5,6,11,12(5aβH,5bβH,11aβH,11bβH)-tetrone | Dibenzo[b,h]biphenylene-5,6,11,12(5aβH,5bβH,11aβH,11bβH)-tetrone | C20H12O4
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| 13 | 14734-19-1 | Dibenzo[b,h]biphenylene-5,6,11,12-tetrone, 5a,5b,11a,11b-tetrahydro-, (5aalpha,5bbeta,11abeta,11balpha)- | Dibenzo[b,h]biphenylene-5,6,11,12-tetrone, 5a,5b,11a,11b-tetrahydro-, (5aalpha,5bbeta,11abeta,11balpha)- | C20H12O4
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