426210-81-3

2,2'-diethynyl-1,1'-binaphthalene (R)-2,2'-Diethynyl-1,1'-binaphthalene 1,1'-Binaphthalene, 2,2'-diethynyl-, (1R)- (R)?-2,?2'-?Diethynyl-1,?1'-?binaphthalene (R)-2,2'-Diethynyl-1,1'-binaphthalene,99%e.e.