TheScholarOfBrew
Banned
Alright degenerates, here’s one for the archives. Because this will be be one of my most valuable learning experience so far
I’m initiating a small experimental synthesis of trenbolone undecanoate...... yes, it’s real, yes, it was studied, and yes, it did appear in the wild for a short time before vanishing into myth-tier status. This isn’t a “should I pin this” thread. This is a research log, and I’ll be walking through each step publicly.
Why tren undecanoate?
Because nobody’s done it right. And because it's chemically valid, rarely discussed, and worth exploring. A long-acting tren ester with theoretical injection spacing of 2–3 weeks? That’s the kind of curiosity that belongs in people's minds...,..
Purpose:
Not for use.... this is strictly a synthesis + validation project. I’ll be sending off samples to Jano for structural verification. I don’t pin unverified chemistry, and I don’t recommend you do either.
Stage 1: Acquiring tren base
You can't just “swap esters.” I’ll be starting with tren base (not acetate), and once that’s on hand, we move to the esterification reaction using undecanoic acid derivatives. It’s a simple two-step conversion for anyone competent:
1. Tren base
2. Undecanoic acid chloride or anhydride
3. Base (TEA/pyridine), mild solvent (DCM/THF)
Done under controlled temp, cleaned, crystallized, validated....
I’ll update this thread as I go... photos, reagent list, reaction outline, final spectra if all goes well.
For reference:
Trenbolone Undecanoate was first described by Roussel in the 1960s
It’s the C17β undecanoate ester of tren (just like Nebido is for test)
Never commercialized, possibly due to solubility/formulation issues or pharmacodynamics
Expect very slow release. Onset? Week+ delay. Clearance? Weeks. Side effects? Linger.????????
Tren Tren Tren Tren
Testosterone undeconate? Tren Undeconate?
Hell yes
I’m initiating a small experimental synthesis of trenbolone undecanoate...... yes, it’s real, yes, it was studied, and yes, it did appear in the wild for a short time before vanishing into myth-tier status. This isn’t a “should I pin this” thread. This is a research log, and I’ll be walking through each step publicly.
Why tren undecanoate?
Because nobody’s done it right. And because it's chemically valid, rarely discussed, and worth exploring. A long-acting tren ester with theoretical injection spacing of 2–3 weeks? That’s the kind of curiosity that belongs in people's minds...,..
Purpose:
Not for use.... this is strictly a synthesis + validation project. I’ll be sending off samples to Jano for structural verification. I don’t pin unverified chemistry, and I don’t recommend you do either.
Stage 1: Acquiring tren base
You can't just “swap esters.” I’ll be starting with tren base (not acetate), and once that’s on hand, we move to the esterification reaction using undecanoic acid derivatives. It’s a simple two-step conversion for anyone competent:
1. Tren base
2. Undecanoic acid chloride or anhydride
3. Base (TEA/pyridine), mild solvent (DCM/THF)
Done under controlled temp, cleaned, crystallized, validated....
I’ll update this thread as I go... photos, reagent list, reaction outline, final spectra if all goes well.
For reference:
Trenbolone Undecanoate was first described by Roussel in the 1960s
It’s the C17β undecanoate ester of tren (just like Nebido is for test)
Never commercialized, possibly due to solubility/formulation issues or pharmacodynamics
Expect very slow release. Onset? Week+ delay. Clearance? Weeks. Side effects? Linger.????????
Tren Tren Tren Tren
Testosterone undeconate? Tren Undeconate?
Hell yes

