Man v rat: could the long war soon be over?

A Wall Street Journal article [1] says that the active chemical is "4-vinylcyclohexene diepoxide" (probably a typo [2]).

My mom lives in Flagstaff, Arizona, where this company is located. She and her husband had an opportunity to invest in this company, and are hoping the product takes off. They'd like a condo in Phoenix, to get away from the winter snow.

[1] http://www.wsj.com/articles/SB100014240527023045125045794940...

[2] https://en.wikipedia.org/wiki/Vinylcyclohexene_dioxide

There is little info in the article about how the sterilizing molecule works. I wonder what the runoff or excretion of it will do in rivers. The pill excreted in human urine already have pretty bad consequences (e.g. hermaphrodite water based life), I'm afraid this wonder product could wipe more than rattus...