Enanthate is the seven-carbon ester in these ampoules, bonded to testosterone to slow the hormone's passage into circulation. Eminence Labs packages Enaprime as ten ampoules at 250 mg/ml, the strength this compound has been produced at for decades.
Practically it is an oily intramuscular solution, nothing water-thin or drinkable, and the long ester places it in the depot class of testosterone preparations - the same family as cypionate, with a marginally shorter carbon chain and a very similar release pattern. Eminence Labs keeps to the one-millilitre ampoule across its testosterone products.