hexaethyl tetraphosphate
... that hexaethyl tetraphosphate was called "another of DDT's rivals for fame" in a 1948 book?
... that <b id="mwBBY"><a href="./Hexaethyl_tetraphosphate" id="mwBBc" rel="mw:WikiLink" title="Hexaethyl tetraphosphate">hexaethyl tetraphosphate</a></b> was called "another of <a href="./DDT" id="mwBBg" rel="mw:WikiLink" title="DDT">DDT</a>'s rivals for fame" in a 1948 book?