. "experimental"@en . . . . . . . . . . . . . . . . . . . . . . . . . "Heliodoro Monroy, \"Process of recovering BHT values from mother liquors of the crystallization of BHT obtained by alkylating p-cresol with isobutylene.\" U.S. Patent US3940451, issued January, 1956."@en . . . . . . . . . . . "P-Cresol"@en . . . . . . "106-44-5"@en . . . .