I’m trying to understand the ester based on crash/re-dissolution behavior.
I supposedly bought testosterone undecanoate 300 mg/mL from a source that has since been proven unreliable. Independent testing of other vials from the same source (same vial color, different label: “Test C 250”) showed it was actually Sustanon at ~178 mg/mL.
This TU-labeled vial crashes badly and only fully re-dissolves after ~10 minutes at ~90 °C (air fryer). That seems extreme. From a chemistry/solubility standpoint, would this behavior be more consistent with a Sustanon-type blend or another ester rather than true undecanoate?
I know this isn’t definitive without lab testing, but I’m interested in whether the dissolution characteristics alone make TU unlikely.
I supposedly bought testosterone undecanoate 300 mg/mL from a source that has since been proven unreliable. Independent testing of other vials from the same source (same vial color, different label: “Test C 250”) showed it was actually Sustanon at ~178 mg/mL.
This TU-labeled vial crashes badly and only fully re-dissolves after ~10 minutes at ~90 °C (air fryer). That seems extreme. From a chemistry/solubility standpoint, would this behavior be more consistent with a Sustanon-type blend or another ester rather than true undecanoate?
I know this isn’t definitive without lab testing, but I’m interested in whether the dissolution characteristics alone make TU unlikely.
