• Shimada, O. et al., Agents Actions, 1986, 19, 208, (pharmacol)
• Nakanishi, M. et al., Arzneim.-Forsch., 1970, 20, 998, (pharmacol, tox)
• Lewis, R.J., Sax's Dangerous Properties of Industrial Materials, 8th edn., Van Nostrand Reinhold, 1992, TGE165
• Martindale, The Extra Pharmacopoeia, 30th edn., Pharmaceutical Press, 1993, 36
• Ger. Pat., 1969, Yoshitomi Pharm, 1 812 404; CA, 71, 124402t, (synth, pharmacol)