From that link it states "(glyphosate) is a phosphonomethyl
Probably the root of the story I heard is that since phosphoric acid
(Ospho), which is a rust killer, sounds somewhat similar and someone
tied the two together.
There are all sorts of versions I've heard of a "variation on a theme"
on the story.
From what I recall, a German(?) pharmaceutical company was first to
make and patent glyphosate but it showed no promising effects and it and
a bunch of other IP was sold and eventually the whole lot was purchased
by Monsanto w/ glyphosate amongst everything else. It took John Franz
to start to systematically explore the botany and chemistry together to
finally make the connection and the rest is, as they say, history.
The original was 41%, and it used to cost almost $50 per quart. It is
still available as 41%, but also 50.5%, 25%, 18%, and who knows what
all. Glyphosate is off-patent now, so I buy cheaper knockoff brands (I
think Enforcer is one of them) and I try to always get 41% because
that's what I'm used to.
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