Spiro[2H-1-benzopyran-2,2'-[2H]indole]-1'(3'H)-propanoicacid, 3',3'-dimethyl-6-nitro-, anhydride with3',3'-dimethyl-6-nitrospiro[2H-1-benzopyran-2,2'-[2H]indole]-1'(3'H)-propanoicacid

CAS No: 63998-89-0

spiro,benzopyran,indole,propanoicacid,dimethyl,nitro,anhydride,nitrospiro