Trenbolone enanthate

Trenbolone enanthate
Clinical data

Routes of administration	Intramuscular injection
Identifiers
IUPAC name [(8S,13S,14S,17S)-13-Methyl-3-oxo-2,6,7,8,14,15,16,17-octahydro-1H-cyclopenta[a]phenanthren-17-yl] heptanoate
CAS Number	1629618-98-9
PubChem (CID)	20112041
ChemSpider	16788271
UNII	FF02TM6THR
Chemical and physical data
Formula	C₂₅H₃₄O₃
Molar mass	382.544 g/mol
3D model (Jmol)	Interactive image
SMILES CCCCCCC(=O)O[C@H]1CC[C@@H]2[C@@]1(C=CC3=C4CCC(=O)C=C4CC[C@@H]23)C
InChI InChI=1S/C25H34O3/c1-3-4-5-6-7-24(27)28-23-13-12-22-21-10-8-17-16-18(26)9-11-19(17)20(21)14-15-25(22,23)2/h14-16,21-23H,3-13H2,1-2H3/t21-,22+,23+,25+/m1/s1 Key:HGSFRISGULOJBX-FVEXOFTDSA-N

Trenbolone enanthate (nickname Trenabol), or trenbolone heptanoate, also known as 19-nor-δ^9,11-testosterone 17β-enanthate or as 19-norandrost-4,9,11-trien-17β-ol-3-one 17β-enanthate, is a synthetic, injected anabolic-androgenic steroid (AAS) and derivative of 19-nortestosterone (nandrolone) that was never marketed.^[1]^[2] It is the C17β enanthate ester and a long-acting prodrug of trenbolone (19-nor-δ^9,11-testosterone).^[1] Trenbolone enanthate is used in scientific research^[3]^[4] and has been sold on the internet black market as a designer steroid for bodybuilders.^[5]

References

1 2 William Llewellyn (2011). Anabolics. Molecular Nutrition Llc. pp. 724–. ISBN 978-0-9828280-1-4.
↑ Underground Anabolics. Molecular Nutrition Llc. pp. 120–. ISBN 978-0-9828280-7-6.
↑ Dalbo VJ, Roberts MD, Mobley CB, Ballmann C, Kephart WC, Fox CD, Santucci VA, Conover CF, Beggs LA, Balaez A, Hoerr FJ, Yarrow JF, Borst SE, Beck DT (2016). "Testosterone and trenbolone enanthate increase mature myostatin protein expression despite increasing skeletal muscle hypertrophy and satellite cell number in rodent muscle". Andrologia. doi:10.1111/and.12622. PMID 27246614.
↑ Ye, F., McCoy, S. C., Yarrow, J. F., Conover, C. F., Beck, D. T., Beggs, L. A., ... & Tillman, M. D. (2013). Effect of Trenbolone enanthate on protein degradation in levator ani/bulbocavernosus (LABC) muscle in orchiectomized rats. The FASEB Journal, 27(1 Supplement), 939-15. http://www.fasebj.org/content/27/1_Supplement/939.15.short
↑ El Osta R, Almont T, Diligent C, Hubert N, Eschwège P, Hubert J (2016). "Anabolic steroids abuse and male infertility". Basic Clin Androl. 26: 2. doi:10.1186/s12610-016-0029-4. PMC 4744441. PMID 26855782.

Androgens and antiandrogens

Androgens
(incl. AAS)

AR agonists	Testosterone derivatives: Boldenone undecylenate Clostebol Clostebol acetate Clostebol caproate Clostebol propionate Cloxotestosterone acetate Dehydroepiandrosterone (DHEA) (androstenolone, prasterone) DHEA enanthate (prasterone enanthate) Quinbolone Testosterone^# Testosterone acetate Testosterone capropate Testosterone cyclohexylpropionate Testosterone cypionate Testosterone decanoate Testosterone enanthate Testosterone ester mixtures (Deposterona, Omnadren, Sustanon) Testosterone furoate Testosterone hexahydrobenzoate Testosterone hexahydrobenzylcarbonate Testosterone hexyloxyphenylpropionate Testosterone isobutyrate Testosterone isocaproate Testosterone ketolaurate Testosterone nicotinate Testosterone phenylacetate Testosterone phenylpropionate Testosterone phosphate Testosterone propionate Testosterone undecanoate Testosterone valerate Dihydrotestosterone derivatives: Bolazine capronate Dihydrotestosterone (DHT) (androstanolone, stanolone) Dihydrotestosterone acetate Dihydrotestosterone benzoate Dihydrotestosterone butyrate Dihydrotestosterone enanthate Dihydrotestosterone formate Dihydrotestosterone propionate Dihydrotestosterone valerate Drostanolone propionate (dromostanolone propionate) Epitiostanol Mepitiostane Mesterolone Metenolone acetate (methenolone acetate) Metenolone enanthate (methenolone enanthate) Stenbolone acetate 19-Nortestosterone derivatives: Bolandiol dipropionate Nandrolone caproate Nandrolone cypionate Nandrolone cyclohexanecarboxylate Nandrolone cyclohexylpropionate Nandrolone decanoate Nandrolone furylpropionate Nandrolone hexyloxyphenylpropionate Nandrolone hydrogen succinate Nandrolone laurate Nandrolone phenylpropionate Nandrolone propionate Nandrolone sulfate sodium Nandrolone undecanoate Norclostebol Norclostebol acetate Oxabolone cipionate (oxabolone cypionate) Trenbolone acetate Trenbolone hexahydrobenzylcarbonate (trenbolone cyclohexylmethylcarbonate) 17α-Alkylated testosterone derivatives: Bolasterone Calusterone Chlorodehydromethyltestosterone (CDMT) Fluoxymesterone Formebolone Metandienone (methandienone, methandrostenolone) Methandriol (methylandrostenediol) Methandriol bisenanthoyl acetate Methandriol dipropionate Methandriol propionate Methyltestosterone Oxymesterone Penmesterol Tiomesterone (thiomesterone) 17α-Alkylated dihydrotestosterone derivatives: Androisoxazole Furazabol Mebolazine (dimethazine) Mestanolone Oxandrolone Oxymetholone Stanozolol 17α-Alkylated 19-nortestosterone derivatives: Ethylestrenol Mibolerone Norethandrolone Normethandrone (methylestrenolone, normethisterone) Propetandrol (propethandrol) 17α-Vinyltestosterone derivatives: Norvinisterone (vinylnortestosterone) 17α-Ethynyltestosterone derivatives: Danazol Gestrinone Progestins (e.g., ethisterone (ethynyltestosterone), levonorgestrel, norgestrel, norethisterone (norethindrone), lynestrenol, norgestrienone) Tibolone Progesterone derivatives: Medroxyprogesterone acetate

Progonadotropins	Antiestrogens (e.g., tamoxifen, clomifene) GnRH agonists (e.g., GnRH (gonadorelin), leuprorelin) Gonadotropins (e.g., LH, hCG)

Antiandrogens

AR antagonists

Steroidogenesis
inhibitors

5α-Reductase	Alfatradiol Dutasteride Epristeride Finasteride Saw palmetto extract

Others	Abiraterone acetate Aminoglutethimide Bifluranol Cyproterone acetate Flutamide Ketoconazole Nilutamide Seviteronel^† Spironolactone

Antigonadotropins

D₂ receptor antagonists (prolactin releasers) (e.g., domperidone, metoclopramide, risperidone, haloperidol, chlorpromazine, sulpiride)
Estrogens (e.g., bifluranol, diethylstilbestrol, estradiol, estradiol esters, ethinyl estradiol, ethinyl estradiol sulfonate, paroxypropione)
GnRH agonists (e.g., leuprorelin)
GnRH antagonists (e.g., cetrorelix)
Progestogens (incl., chlormadinone acetate, cyproterone acetate, hydroxyprogesterone caproate, gestonorone caproate, medroxyprogesterone acetate, megestrol acetate)

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

See also: Estrogens and antiestrogens • Progestogens and antiprogestogens • Glucocorticoids and antiglucocorticoids • Mineralocorticoids and antimineralocorticoids • Gonadotropins and GnRH

Progestogens and antiprogestogens

Progestogens
(and progestins)

Progesterone	Progesterone Quingestrone

Retroprogesterone	Dydrogesterone Trengestone

17α-Hydroxyprogesterone (and closely related)	Acetomepregenol (mepregenol diacetate) Algestone Algestone acetophenide Anagestone acetate Chlormadinone acetate Cyproterone acetate Delmadinone acetate Flugestone acetate (flurogestone acetate) Flumedroxone acetate Hydroxyprogesterone Hydroxyprogesterone acetate Hydroxyprogesterone caproate Hydroxyprogesterone heptanoate Medroxyprogesterone Medroxyprogesterone acetate^# Megestrol acetate Melengestrol acetate Osaterone acetate Pentagestrone acetate Other 17α-substitutions: Haloprogesterone Medrogestone Proligestone

19-Norprogesterone (incl. 17α-substituted)	Demegestone Gestonorone caproate (gestronol hexanoate) Nomegestrol acetate Norgestomet Promegestone Segesterone acetate (nestorone) Trimegestone

17α-Ethynyltestosterone	Danazol Dimethisterone Ethisterone

19-Nortestosterone	Estranes: Etynodiol diacetate Gestrinone Lynestrenol Norethisterone (norethindrone)^# Norethisterone acetate Norethisterone enanthate Noretynodrel Norgestrienone Quingestanol acetate Tibolone Gonanes: Desogestrel Dienogest Etonogestrel Gestodene Levonorgestrel^# Norelgestromin Norgestimate Norgestrel Others: Allylestrenol Altrenogest Norgesterone Normethandrone (methylestrenolone) Norvinisterone Oxendolone

17α-Spirolactosteroid	Canrenone Drospirenone Potassium canrenoate Spironolactone

Others	Anabolic steroids (e.g., nandrolone esters, trenbolone esters, norethandrolone, normethandrone, propetandrol, others)

SPRMs

Antiprogestogens

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

See also: Androgens and antiandrogens • Estrogens and antiestrogens • Glucocorticoids and antiglucocorticoids • Mineralocorticoids and antimineralocorticoids • Gonadotropins and GnRH

Androgen receptor modulators

Agonists	Testosterone derivatives: 4-Androstenediol 4-Androstenedione 4-Dehydroepiandrosterone (4-DHEA) 4-Hydroxytestosterone 5-Androstenediol 5-Androstenedione 11-Ketotestosterone 11β-Hydroxyandrostenedione Adrenosterone (11-ketoandrostenedione, 11-oxoandrostenedione) Atamestane Boldenone Boldenone undecylenate Boldione (1,4-androstadienedione) Clostebol Clostebol acetate Clostebol caproate Clostebol propionate Cloxotestosterone Cloxotestosterone acetate DHEA (androstenolone, prasterone; 5-DHEA) DHEA enanthate (prasterone enanthate) DHEA sulfate Exemestane Formestane Plomestane Quinbolone Silandrone Testosterone^# Testosterone acetate Testosterone acetate butyrate Testosterone acetate propionate Testosterone benzoate Testosterone butyrate Testosterone buciclate Testosterone capropate Testosterone cyclohexylpropionate Testosterone cypionate Testosterone decanoate Testosterone diacetate Testosterone dipropionate Testosterone enanthate Testosterone formate Testosterone furoate Testosterone hexahydrobenzoate Testosterone hexahydrobenzylcarbonate Testosterone hexyloxyphenylpropionate Testosterone isobutyrate Testosterone isocaproate Testosterone isovalerate Testosterone ketolaurate Testosterone nicotinate Testosterone palmitate Testosterone phenylacetate Testosterone phenylbutyrate Testosterone phenylpropionate Testosterone phosphate Testosterone propionate Testosterone stearate Testosterone sulfate Testosterone undecanoate Testosterone valerate Dihydrotestosterone derivatives: 1-Androstenediol 1-Androstenedione 1-Androsterone (1-andro, 1-DHEA) 1-Testosterone 3α-Androstanediol 7β-Hydroxyepiandrosterone 11-Ketodihydrotestosterone Androsterone Bolazine Bolazine capronate Dihydrotestosterone (androstanolone, stanolone) Dihydrotestosterone acetate Dihydrotestosterone benzoate Dihydrotestosterone butyrate Dihydrotestosterone enanthate Dihydrotestosterone formate Dihydrotestosterone propionate Dihydrotestosterone valerate Drostanolone Drostanolone propionate Epiandrosterone Epitiostanol Mepitiostane Mesabolone Mesterolone Nisterime Nisterime acetate Prostanozol Stenbolone Stenbolone acetate 19-Nortestosterone derivatives: 7α-Methyl-19-norandrostenedione (MENT dione, trestione) 11β-Methyl-19-nortestosterone 11β-Methyl-19-nortestosterone dodecylcarbonate 19-Nor-5-androstenediol 19-Nor-5-androstenedione Bolandiol Bolandiol dipropionate Bolandione (19-nor-4-androstenedione) Bolmantalate (nandrolone adamantoate) Dienedione Dienolone Dimethandrolone Dimethandrolone buciclate Dimethandrolone dodecylcarbonate Dimethandrolone undecanoate LS-1727 (nandrolone 17β-N-(2-chloroethyl)-N-nitrosocarbamate) Methoxydienone (methoxygonadiene) Nandrolone Nandrolone acetate Nandrolone caproate Nandrolone cypionate Nandrolone cyclohexanecarboxylate Nandrolone cyclohexylpropionate Nandrolone cyclotate Nandrolone decanoate Nandrolone formate Nandrolone furylpropionate Nandrolone hexyloxyphenylpropionate Nandrolone hydrogen succinate Nandrolone laurate Nandrolone phenylpropionate Nandrolone propionate Nandrolone sulfate Nandrolone sulfate sodium Nandrolone undecanoate Norclostebol Norclostebol acetate Normethandrone (methylestrenolone, normethisterone) Oxabolone Oxabolone cipionate (oxabolone cypionate) Trenbolone Trenbolone acetate Trenbolone enanthate Trenbolone hexahydrobenzylcarbonate Trestolone (MENT) Trestolone acetate Dihydrotestosterone and 19-nortestosterone derivatives: 5α-Dihydronandrolone 19-Norandrosterone 17α-Alkylated testosterone derivatives: Bolasterone Calusterone Chlorodehydromethylandrostenediol (CDMA) Chlorodehydromethyltestosterone (CDMT) Chloromethylandrostenediol (CMA) Enestebol Ethyltestosterone Fluoxymesterone Formebolone Hydroxystenozole Metandienone (methandrostenolone) Methandriol (methylandrostenediol) Methandriol bisenanthoyl acetate Methandriol diacetate Methandriol dipropionate Methandriol propionate Methylclostebol (chloromethyltestosterone) Methyltestosterone Oxymesterone Penmesterol Tiomesterone 17α-Alkylated dihydrotestosterone derivatives: Androisoxazole Desoxymethyltestosterone Furazabol Mebolazine (dimethazine) Mestanolone Metenolone Metenolone acetate Metenolone enanthate Methasterone Methyl-1-testosterone Methylepitiostanol Methylstenbolone Oxandrolone Oxymetholone Stanozolol 17α-Alkylated 19-nortestosterone derivatives: Bolenol Dimethyltrienolone (7α-methylmetribolone, 7α,17α-dimethyltrenbolone) Ethyldienolone Ethylestrenol Methyldienolone Methylhydroxynandrolone (MOHN, MHN) Metribolone Mibolerone Norboletone Norethandrolone Propetandrol Tetrahydrogestrinone 17α-Vinyltestosterone derivatives: Norvinisterone (vinylnortestosterone) Vinyltestosterone 17α-Ethynyltestosterone derivatives: Δ^4-Tibolone Chloroethynyl norgestrel Danazol Desogestrel Ethisterone (ethynyltestosterone) Etonogestrel Gestodene Gestrinone Levonorgestrel Levonorgestrel butanoate Norethisterone Norethisterone acetate Norethisterone acetate oxime Norethisterone enanthate Norgestrel Norgestrienone Quingestanol acetate Tibolone Progesterone derivatives: Medroxyprogesterone acetate Others/unsorted: Cl-4AS-1

Mixed (SARMs)	Non-steroidal: 198RL26 ACP-105 AC-262,356 Acetothiolutamide Andarine (acetamidoxolutamide, androxolutamide, GTx-007, S-4) BMS-564,929 Enobosarm (ostarine, MK-2866, GTx-024, S-22) FTBU-1 GSK-4336A GSK-8698 LG-121071 (LGD-121071) LGD-2226 LGD-2941 (LGD-122941) LGD-3303 LGD-4033 JNJ-26146900 JNJ-28330835 JNJ-37654032 ORM-11984 RAD140 R-1 R-2 R-3 S-1 S-23 S-40503 S-101479 Steroidal: MK-0773 TFM-4AS-1 YK-11

Antagonists	Steroidal: 3α-Hydroxytibolone 3β-Hydroxytibolone 11α-Hydroxyprogesterone 15β-Hydroxycyproterone acetate Abiraterone acetate Allyltestosterone Benorterone BOMT Canrenoic acid Canrenone Chlormadinone acetate Clometerone Cortexolone 17α-propionate (CB-03-01) Cyproterone Cyproterone acetate Delanterone Dienogest Drospirenone Edogestrone Epitestosterone Galeterone Guggulsterone Medrogestone Megestrol acetate Mespirenone Metogest Mexrenone Mifepristone Nomegestrol acetate Nordinone Osaterone Osaterone acetate Oxendolone Potassium canrenoate Prorenone Rosterolone SC-5233 (spirolactone) Spironolactone Spirorenone Topterone Trimethyltrienolone (R-2956) Zanoterone Non-steroidal: AA560 Apalutamide Atraric acid AZD-3514 BAY-1024767 Bicalutamide Bisphenols (e.g., BADGE, BFDGE, bisphenol A, bisphenol F, bisphenol S) BMS-641,988 Cimetidine Cioteronel Darolutamide DDT (via metabolite p,p’-DDE) Dieldrin DIMP Endosulfan Enzalutamide EPI-001 EPI-506 Fenarimol Flutamide Hydroxyflutamide Inocoterone Inocoterone acetate Ketoconazole Lavender oil LG-105 LG-120907 Linuron Methiocarb N-Butylbenzenesulfonamide N-Desmethylenzalutamide Nilutamide ONC1-13B ORM-15341 Pentomone PF-998425 Phenothrin Prochloraz Procymidone RU-22930 RU-58642 RU-58841 Seviteronel Thalidomide Topilutamide (fluridil) Valproic acid Vinclozolin

GPRC6A

Agonists	Cations (incl. aluminum, calcium, gadolinium, magnesium, strontium) Dehydroandrosterone Dihydrotestosterone Estradiol L-α-Amino acids (incl. L-arginine, L-lysine, L-ornithine) Osteocalcin Testosterone

See also: Estrogenics • Glucocorticoidics • Mineralocorticoidics • Progestogenics • Steroid hormone metabolism modulators • List of androgens/anabolic steroids

Progesterone receptor modulators

Agonists	Progesterone derivatives: 5α-Dihydroprogesterone 9α-Bromo-11-ketoprogesterone 11-Dehydroprogesterone 11-Deoxycorticosterone 16α-Hydroxyprogesterone 20α-Dihydroprogesterone Dimepregnen Diosgenin Progesterone Quingestrone Retroprogesterone derivatives: Dydrogesterone Retroprogesterone Ro 6-3129 Trengestone 17α-Substituted progesterone derivatives: 17α-Hydroxyprogesterone (hydroxyprogesterone) 17α-Methylprogesterone Acetomepregenol (mepregenol diacetate) Algestone Algestone acetonide Algestone acetophenide Amadinone Amadinone acetate Anagestone Anagestone acetate Butagest (buterol) Chlormadinone Chlormadinone acetate Cismadinone Cismadinone acetate Clogestone Clogestone acetate Clomegestone Clomegestone acetate Cyproterone acetate Delmadinone Delmadinone acetate Edogestrone Flugestone Flugestone acetate Flumedroxone Flumedroxone acetate Gestaclone Haloprogesterone Hydromadinone (hydromadinone acetate) Hydroxyprogesterone acetate Hydroxyprogesterone caproate (hydroxyprogesterone hexanoate) Hydroxyprogesterone heptanoate (hydroxyprogesterone enanthate) Mecigestone (pentarane B) Medrogestone Medroxyprogesterone Medroxyprogesterone acetate Megestrol Megestrol acetate Melengestrol Melengestrol acetate Mometasone Mometasone furoate Osaterone Osaterone acetate Pentagestrone Pentagestrone acetate Pentarane A Proligestone 19-Norprogesterone derivatives: 19-Norprogesterone Demegestone Gestadienol Gestonorone caproate (gestronol hexanoate) Gestronol (gestonorone) Nomegestrol Nomegestrol acetate Norgestomet Org-2058 Oxogestone Oxogestone phenpropionate Promegestone Segesterone Segesterone acetate (nestorone) Trimegestone Testosterone derivatives: 6,6-Difluoronorethisterone 11β-Methyl-19-nortestosterone 11β-Methyl-19-nortestosterone dodecylcarbonate 19-Nor-5-androstenediol 19-Nor-5-androstenedione Δ^4-Tibolone Allylestrenol Altrenogest Bolandiol Bolandiol dipropionate Bolandione Chloroethynyl norgestrel Cingestol Danazol Desogestrel Dienedione Dienogest Dienolone Dimethandrolone Dimethandrolone buciclate Dimethandrolone dodecylcarbonate Dimethandrolone undecanoate Dimethisterone Dimethyltrienolone Ethisterone Ethyldienolone Ethylestrenol (ethylnandrol) Ethynerone Etonogestrel Etynodiol Etynodiol diacetate Gestodene Gestrinone Levonorgestrel Levonorgestrel butanoate Lynestrenol Methyldienolone Metribolone (R-1881) Metynodiol Metynodiol diacetate Methoxydienone (methoxygonadiene) Mibolerone Nandrolone Nandrolone esters (e.g., nandrolone decanoate, nandrolone phenylpropionate) Norelgestromin Norethisterone (norethindrone) Norethisterone acetate Norethisterone acetate oxime Norethisterone enanthate Noretynodrel Norgesterone Norgestimate Norgestrel Norgestrienone Normethandrone (methylestrenolone, normethandrolone, normethisterone) Norvinisterone Oxendolone Quingestanol Quingestanol acetate Tetrahydrogestrinone Tibolone Tigestol Tosagestin Trenbolone (trienolone) Trestolone Trestolone acetate Spirolactone derivatives: Canrenoic acid Canrenone Drospirenone Mespirenone Potassium canrenoate SC-5233 SC-8109 Spironolactone Spirorenone Non-steroidal: 3,8-Dihydrodiligustilide Riligustilide Tanaproget ZM-182345

Mixed (SPRMs)	Apigenin Asoprisnil Asoprisnil ecamate Guggulsterone Kaempferol J1042 LG-120838 Naringenin PRA-910 Syringic acid Telapristone Antagonistic: Mifepristone Org-31710 Org-33628 Ulipristal acetate ZK-137316

Antagonists	3α-Hydroxytibolone 3β-Hydroxytibolone Aglepristone Lilopristone Lonaprisan Onapristone Toripristone Valproic acid Vilaprisan Zanoterone ZM-150271 ZM-172406

mPRs
(PAQRs)

Agonists	5α-Dihydroprogesterone 5β-Dihydroprogesterone 11-Deoxycorticosterone 17α-Hydroxyprogesterone 17α,21-Dihydroxyprogesterone 21-Hydroxyprogesterone Allopregnanolone Mifepristone Pregnenolone Progesterone

Antagonists	Mifepristone

See also: Androgenics • Estrogenics • Glucocorticoidics • Mineralocorticoidics • Steroid hormone metabolism modulators

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