The letter in the code is the ester and the number is the strength — A for acetate, 100 for the milligrams per millilitre — which is how Pharmacom Labs marks out its trenbolone products. This one comes as a 10 ml vial.
Acetate-bound trenbolone is the short-acting form, working soon after injection and gone comparatively quickly, and that is the real distinction from the E-coded enanthate item sold alongside it. The hormone is a synthetic 19-nortestosterone derivative with strong androgen-receptor binding and no conversion to oestrogen.
