Its Esterified version, pregnenolone sulfate, is water-soluble.
In general,
pectin's water-solubility increases with decreasing molecular weight and increases in Esterified carboxyl groups.
This risk holds true for other injectable long-chain Esterified steroids like Dianabol, Primobolan and Equipoise.
Esterified steroids have less polarity than free steroids and
are absorbed more slowly in the injection area.
When taking a quantity of an Esterified steroid, the total weight is a combination of both the ester weight
and the steroid.
Clearly the anabolic effect of this testosterone will be realized much more
quickly than we would expect with an oil based(Esterified) preparation.
Esterified steroids are proposed to prolong the window
of therapeutical effect following administration, allowable for a lower periodic injection docket compared to injections of free(unEsterified) steroid.