Trenbolone Research Reference

Catalog classification, reference sizes, lab math links, and source-backed data. Educational use only — not medical advice.

Researched for: Vendor-neutral scientific reference catalog entry for trenbolone

anabolic androgenic steroid compound Reference needs_revision Best effort · source review pending

Also known as: 17β-Trenbolone, 17beta-Trenbolone, Trienbolone, Trienolone, 17β-Hydroxyestra-4,9,11-trien-3-one, (+)-Trenbolone

Best-effort research profile: this record has not passed full two-source scientific verification. Descriptive fields, research protocols, storage/handling notes, and interaction guidance below are shown with their evidence labels, but calculator presets and exact dosing math remain hidden until the record is verified or reaches Community-Supported status.

Quick Facts

Reference Sizes
Not standardized / source review pending

Best-Effort Research Profile

Trenbolone is a synthetic steroid chemically classified as a C18-steroid, 17β-hydroxy steroid, and 3-oxo-Δ4 steroid. It is an anabolic androgenic steroid and androgen-receptor-active compound. In veterinary applications, trenbolone acetate and related ester forms function as prodrugs that are hydrolyzed to free 17β-trenbolone. The parent compound should be distinguished from trenbolone acetate and other trenbolone esters because they are separate chemical substances with different physicochemical and pharmacokinetic properties.

Source review pending. This descriptive profile is shown from the available source material as a best-effort educational reference. It has not passed the full verification bar and is not a dosing instruction, medical claim, or treatment recommendation.

Research Profile

Half-Life
As trenbolone acetate, the ester form most commonly referenced in research and veterinary literature, elimination half-life is approximately 3 days after intramuscular administration.

Reported Research Effects

Data source: Primary literature, regulator records, trial registries, and identity-specific evidence search

Reflects preclinical/research literature context only. Not a medical claim, dosing instruction, or treatment recommendation.

Research Notes

No common reference package sizes were recorded because size conventions are not an intrinsic, reliably standardized scientific property for the parent compound. No administration route, onset, half-life, solubility, or storage specification was assigned to free trenbolone without a compound-specific authoritative source; ester formulations should not be used as substitutes for parent-compound values.

Supplementary research context only. Not medical advice or a treatment recommendation.

Registry Identifiers

CAS RN 10161-33-8; PubChem CID 25015; ChEBI CHEBI:35018; molecular formula C18H22O2; molecular weight 270.4 g/mol; InChIKey MEHHPFQKXOUFFV-OWSLCNJRSA-N; IUPAC name (8S,13S,14S,17S)-17-hydroxy-13-methyl-2,6,7,8,14,15,16,17-octahydro-1H-cyclopenta[a]phenanthren-3-one

Source-Backed Observations

The unesterified parent compound is distinct from trenbolone acetate, trenbolone enanthate, and other ester derivatives. FDA-authorized livestock growth-implant information refers to trenbolone acetate rather than free trenbolone. Environmental research has identified free 17β-trenbolone as an active metabolite associated with livestock waste and feedlot effluent.

Reflects published research. Educational reference — not a recommendation for use.

Sources Under Review

Trenbolone | CID 25015
https://pubchem.ncbi.nlm.nih.gov/compound/Trenbolone (accessed 2026-09-15)
Trenbolone | CHEBI:35018
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:35018 (accessed 2026-09-15)
Steroid Hormone Implants Used for Growth in Food-Producing Animals
https://www.fda.gov/animal-veterinary/product-safety-information/steroid-hormone-implants-used-growth-food-producing-animals (accessed 2026-09-15)
Interaction of Trenbolone, a Potential Feedlot Effluent Contaminant, with Human and Rainbow Trout Androgen Receptors and In Vivo Androgenic Effects in the Rat
https://cfpub.epa.gov/si/si_public_record_Report.cfm?Lab=NHEERL&dirEntryID=61627 (accessed 2026-09-15)

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Related Research Articles

Published articles on this site that mention Trenbolone or one of its catalog aliases.

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Research Use Only. All content is for educational and research reference only. Not medical advice, a treatment recommendation, or guidance on human use. Compounds are not FDA-approved drugs unless specifically noted.

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