A peculiar concrete, fatty substance obtained from Physeter macrocejrfialus, U.S.P. Nearly pure cetine, obtained, mixed with oil, from the head of the sperm whale, Physeter macrocephalus, inhabiting the Pacific and Indian Oceans. It is separated from the oil by filtration and pressure, and afterwards purified, B.P.

Characters. - Crystalline, pearly-white, glistening, translucent, with little taste or odour, reducible to powder by the addition of a little rectified spirit. Scarcely unctuous to the touch; does not melt under 100° F.

Preparations.

B.P

Unguentum Cetacei.

Charta Epispastica.

U.S.P

Ceratum Cetacei.

Unguentum Aquae Rosae.

Use. - It is used as an emollient external application.