What's the point of talking about something unless you know what you're talking about?
Why isn't anyone - the NHL, the team, the player, "reliable sources", anyone - able or willing to say what the substance actually was?
The list of "chemicals" (notice I didn't use the word "drugs") proscribed by the World Anti Doping Agency (WADA) is here:
https://en.wikipedia.org/...t_of_drugs_banned_by_WADA
(Edit: I retrieved this url on my desktop. However, when I tried to access the exact same url on my ipad, it said the url didn't exist so my apologies if it doesn't work for you.)
Frankly, I cannot imagine how any normal person, leading a normal, everyday life, could be certain the food (takeout or otherwise) , detergents (washing dishes), gasoline additives, (pumping gas), copier paper, clothing, swimming (in a pool or river - all are polluted to some degree) and all the things we regularly come in contact with in our daily lives could not leave a miniscule residue of 1 billionth of a milligram of one
or more of these chemicals in our bodies.
Take a minute and read the list of literally hundreds of chemicals. It's mind boggling.
I suspect if we (who aren't purposely scrupulous in our lives) were to be tested, we'd all fail.