↑ a b c d e J. JG Cadogan (Ed.), SV Ley (Ed.), G. Pattenden (Ed.), RA Raphael (Ed.), CW Rees (Ed.): Dictionary of organic compounds, Volume 6: Phl-Z. 6th edition, Chapman & Hall (Chemical Abstracts Service) / CRC Press, 1996, ISBN 0-412-54090-8 , p. 6468
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ a b Journal of the American Chemical Society. Vol. 61, Pg. 776, 1939.
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