Synonyms: α1,α1,α3,α3,5-Pentamethyl-1,3-benzenediacetonitrile; 2,2’-(5-Methyl-1,3-phenylene)di(2-methylpropionitrile); 2-[3-(Cyanodimethylmethyl)-5-methylphenyl]-2-methylpropionitrile; 3,5-Bis(2-cyano-2-methylethyl)toluene; 3,5-Bis(2-cyanoprop-2-yl)toluene; USP Anastrozole Related Compound A; Anastrozole EP Impurity H