Photochromic dye, 3-(4-butoxyphenyl-6,7-dimethoxy-3-(4-methoxyphenyl)-13,13-dimethyl-3,13-dihydrobenzo[h]indeno[2,1-f]chromene-11-carbonitrile
Fotokróm színezék,3-(4-butoxifenil-6,7-dimetoxi-3-(4-metoxifenil)-13,13-dimetil-3,13-dihidrobenzo[h]indén[2,1-f]kromén-11-karbonitril