It was verified that chemical constitution of β-trihydroxyhomocholene isolated by Ku-roda (9) from bull frog bile is 3α, 7α, 12α-trihydroxy-Δ24-homo-5α-cholene. The author wishes to express her sincere thank to Prof. T. Kazuno for his valuable suggestions throughout this work. She also thanks Prof. G. A. D. Haslewood for his most pertinent advice and for getting infrared spectra of my sample.
