Because they’re not called that. 
Not completely, anyway. T1 & T2 is a futher abbreviation.
The full names are actually ANONET1 through ANONET6. They’re 6 bottles of modified androstenone that make up parts 1 and 2 of “The Great Androstenone Experiment”.
Check out the thread on it here: The Great Androstenone Experiment Parts 1 and 2
I’d like to take a closer look at these products. Links anyone? Would be nice.
There’s actually less quantity of these available than is stated on the cart, but here they are: