Prepn: Brodersen et al., US 2838485 (1958 to Hoechst); Stavrovskaya, Drusvyatskaya, C.A. 59, 15199a (1963). Mode of action: Festy et al., C. R. Seances Acad. Sci. Ser. D 271, 730 (1970). Chemotherapeutic characteristics: Schmulevich et al., Veterinariya (Moscow) 38, 23 (1961), C.A. 56, 13512b (1962). Review: Newton in Antibiotics vol. 3, J. W. Corcoran, F. E. Hahn, Eds. (Springer-Verlag, New York, 1975) pp 34-47.