

- Name:Spiro[naphth[2,3-b]oxirene-2(7H),2'-naphtho[1,8-de][1,3]dioxin]-7-one,1a,7a-dihydro-6-hydroxy-, (1aR,7aS)-
- Cas:158204-30-9
- Formula:C20H12O5
- Synonyms:Spiro[naphtho[1,8-de]-1,3-dioxin-2,2'(7'H)-naphth[2,3-b]oxiren]-7'-one,1'a,7'a-dihydro-6'-hydroxy-, (1'aR,7'aS)- (9CI); Deoxypreussomerin A;Palmarumycin C2

- Name:Fluorescein
- Cas:2321-07-5
- Formula:C20H12O5
- Synonyms:Fluorescein(8CI);3,6-Dihydroxyspiro[xanthene-9,3'-phthalide];3',6'-Fluorandiol;Benzoic acid,2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-;C.I. 45350:1;D and C Yellow No. 7;3',6'-Dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one;C Yellow No. 7;Japan Yellow 201;Japan Yellow No. 201;Resorcinolphthalein;Yellow fluorescein;






- Name:Halenaquinone
- Cas:86690-14-4
- Formula:C20H12O5
- Synonyms:(+)-halenaquinone;(12bs)-12b-methyl-1h-tetrapheno[5,4-bc]furan-3,6,8,11(2h,12bh)-tetrone;12b-methyl-(S)-1H-benzo[6,7]phenanthro[10,1-bc]furan-3,6,8,11(2H,12bH)-tetrone;helenaquinone;

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