2-AD by AX was never released, but I did find a product that's been discontinued called 2-AD-X by Flexstar, which might be what you're talking about.
This is the description on the site:
"2-AD-X is a naturally occurring, highly active prohormones that converts to an extremely potent isomer of testosterone. 1 testosterene 2-AD-X and 1-testosterone DO NOT aromatize to estrogens."
And yes, the spelling mistakes were in the actual description, I just copied and pasted it.