2-amino-2,2-diphenylacetic acid; 2,2-Diphenylglycine; Amino(diphenyl)acetic Acid; α-Amino-α-phenylbenzeneacetic acid; 2-Amino-2,2-diphenylacetic acid; Amino(diphenyl)acetic acid; α,α-Diphenylglycine; α-Aminodiphenylacetic acid; Diphenylglycine, Phenytoin Related Compound A (USP)