螺[1,3,3-三甲基吲哚-(6'-硝基苯并二氢吡喃)]
Spiro[2H-1-benzopyran-2,2'-[2H]indole],1',3'-dihydro-1',3',3'-trimethyl-6-nitro-;1,3,3-Trimethylindolino-6'-nitrobenzopyrylospiran [Photochromic Compound];1,3,3-TRIMETHYLINDOLINO-6'-NITROBENZOPYRYLOSPIRAN;1',3',3'-Trimethyl-6-nitrospiro[1(2H)-benzopyran-2,2'-indoline];1',3',3'-trimethyl-6-nitrospiro[chromene-2,2'-indole];1',3',3'-Trimethyl-6-nitrospiro[chromene-2,2'-indoline];6-Nitro-1',3',3'-trimethylspiro[2H-benzopyran-2,2'-indoline];6'-Nitro-1,3,3-trimethylspiro[2'H-1'-benzopyran-2',2-indoline];6'-Nitro-1,3,3-trimethylspiro[indoline-2,2'-2'H-chromene];NSC 206176;SP 1;SP 1 (dye);AKOS 90425;1' 3'-DIHYDRO-1' 3' 3'-TRIMETHYL-6-NITR&;6'-Nitro-1,3,3-trimethylindolinobenzopyrylspiran;1,3,3-Trimethylindolino-6-nitrobenzopyrylospirane;1,3,3-trimethyl-6'-nitroindole-2-spiro-2'-benzopyran;1',3'-dihydro-1',3',3'-trimethyl-6-nitro-spiro(2H;Spiro[2H-1-benzopyran-2,2'-[2H]indole], 1',3'-dihydro-1',3',3'-trimethyl-6-nitro-;Spiro[2H-1-benzopyran-2,2'-indoline], 1',3',3'-trimethyl-6-nitro-;1,3,3-Trimethyl-6'-nitroindoline-2-spiro-2'-benzopyran;Spiro(2H-1-benzopyran-2,2'-indoline), 6-nitro-1',3',3'-trimethyl-;1',3',3'-Trimethyl-6-nitro