Product Name:3',3'-Dimethyl-1'-(-hydroxyethyl)-6-nitrospiro[2H-1-benzopyran-2,2'-indoline]

Synonym：1-(2-Hydroxyethyl)-3,3-dimethylindolino-6'-nitrobenzopyrylospiran;

         3',3'-Dimethyl-6-nitro-spiro[2H-1-benzopyran-2,2'-indoline]-1'-ethanol

Catalogue No.: FC3310

CAS Number: 16111-07-2

Molecular Formula: C20 H20 N2 O4 

Molecular Weight :352

Content:>93%(HPLC)

Application：Photochromic dye