Syonyms Name: Birch tar oil; Betula alba oil; Birch oil; Oil of birch; Betula pendula oil; Birch tar oil, empyreumatic; Birch tar oil, rectified; Birth tar oil (Betula pendula Roth); Essential oil of birch wood; HSDB 1957; Oil White birch; Oils, birch-tar; Oils, white