Gmelin Handbook: Sn: Org.Verb.2, 1.1.2.5.2, page 276 - 305 Full Text Show Details Procter and Gamble Co. Patent: DE2114367 , 1971 ; C. A., 1972 , vol. 76, p. 25425 Full Text Show Details Procter and Gamble Co. Patent: FR2093424 , 1972 ; C. A., 1972 , vol. 77, p. 140292