What is MENT (Trestolone Acetate)?
MENT (Trestolone Acetate — potent synthetic 19-nor androgen (injectable)) is the acetate ester of trestolone — C₂₁H₃₀O₃, MW 346.5. 7α-methyl-19-nortestosterone acetate with ~10× greater AR binding affinity than testosterone. Unlike testosterone, MENT cannot be converted to DHT by 5α-reductase (7α-methyl group blocks reduction). Partially aromatises to 7α-methyl-oestradiol. Originally developed as a male hormonal contraceptive. High progestogenic activity.
Research Applications
High-Affinity Synthetic Androgen Research
~10× greater AR binding vs testosterone — high-potency androgen receptor studies
5α-Reductase Resistance
7α-methyl group blocks 5α-reduction to DHT — tissue-selective androgenic activity model
Male Hormonal Contraception Research
Original MENT application — HPT axis suppression for male contraception studies
Progestogenic Activity
High PR agonism — progesterone receptor cross-reactivity and progestogenic co-effects
19-nor Synthetic Androgen Pharmacology
MENT vs nandrolone and trenbolone — comparative 19-nor receptor pharmacology
Quick Specs
| Form | Oil-based injectable solution |
| Concentration | 50mg/mL |
| CAS | 6157-87-5 |
| Molecular Formula | C₂₁H₃₀O₃ |
| MW | 346.5 Da |
| Purity | ≥99% by HPLC — every batch |
| Identity | MS molecular weight confirmed — every batch |
| COA | Janoshik-independent, publicly verifiable |
| Vehicle | Pharmaceutical-grade carrier oil + benzyl alcohol/benzoate |
| Aromatisation | Partial — aromatises to 7α-methyl-oestradiol |
| Storage | Room temp sealed | 2–8°C recommended |
| Shelf Life | 24 months (unopened) |