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Trenbolone

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Trenbolone Basic information

Product Name:
Trenbolone
Synonyms:
  • BETA-TRENBOLONE
  • 17BETA-HYDROXYESTRA-4,9,11-TRIEN-3-ONE
  • 17-HYDROXYESTRA-4,9,11-TRIEN-3-ONE
  • 4,9,11-ESTRATRIEN-17-BETA-OL-3-ONE
  • TRENBOLONE
  • (8S,13S,14S,17S)-17-hydroxy-13-methyl-2,6,7,8,14,15,16,17-octahydro-1H-cyclopenta[a]phenanthren-3-one
  • TRENBOLONE:17-HYDROXYESTRA-4,9,11-TRIEN-3-ONE
  • TrenboloneEnanthateBase
CAS:
10161-33-8
MF:
C18H22O2
MW:
270.37
EINECS:
600-229-1
Product Categories:
  • trenbolone series
  • Intermediates & Fine Chemicals
  • Steroids
  • Pharmaceuticals
  • Steroid and Hormone
  • Finished Steroid and Hormone
Mol File:
10161-33-8.mol
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Trenbolone Chemical Properties

Melting point:
170°C
alpha 
D20 +19° (c = 0.45 in ethanol)
Boiling point:
490.8±45.0 °C(Predicted)
Density 
1.19±0.1 g/cm3(Predicted)
Flash point:
2℃
storage temp. 
2-8°C
form 
neat
pka
14.73±0.40(Predicted)
InChIKey
MEHHPFQKXOUFFV-OWSLCNJRSA-N
CAS DataBase Reference
10161-33-8(CAS DataBase Reference)
EPA Substance Registry System
Estra-4,9,11-trien-3-one, 17-hydroxy-, (17.beta)- (10161-33-8)
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Safety Information

Hazard Codes 
T,Xn,F
Risk Statements 
60-36-20/21/22-11
Safety Statements 
53-22-36/37/39-45-36/37-26-16
RIDADR 
UN 1648 3 / PGII
WGK Germany 
3
RTECS 
KG7752000

MSDS

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Trenbolone Usage And Synthesis

Description

Trenbolone is a kind of anabolic androgenic steroid belonging to the 19-nortestosterone group. It can be supplied to veterinary medicine of livestock in order the boost muscle growth and appetite. It can also enhance the performance of athletes. It has several physiological effects: (1) enhance protein synthesis and nitrogen retention in the muscle tissues, which boost enhanced anabolism; (2) greatly promote insulin-like growth factor-1 (IGF-1) which is a highly effective anabolic hormone; (3) Greatly increase the red blood cell count to boost blood oxygenation which leads to improved muscular endurance; (4) Inhibit glucocorticoid hormones which inhibit the growth of muscle tissue and promote fat. (5) Improve food efficiency.

Chemical Properties

Yellow Solid

Originator

Parabolan,Negma,France,1980

Uses

Controlled substance (anabolic steroid).

Manufacturing Process

Stage A: Preparation of 17β-Benzoyloxy-Estra-4,9,11-Trien-3-one - 0.400 g of 17β-benzoyloxy-4,5-seco-estra-9,11-diene-3,5-dione is dissolved in 4 cc of toluene under an inert atmosphere. The solution is cooled to 3°C, then 0.48 cc is added of the solution of sodium tert-amylate in anhydrous toluene, diluted by the addition of a further 4.8 cc of anhydrous toluene.
This reaction mixture is kept between 0°C and +5°C for six hours, with agitation and under an inert atmosphere, then 5 cc of a 0.2 N solution of acetic acid in toluene are added. The mixture is extracted with toluene, and the extracts are washed with water and evaporated to dryness. The residue is taken up in ethyl acetate, and then the solution is evaporated to dryness in vacuo, yielding a resin which is dissolved in methylene chloride, and the solution passed through a column of 40 g of magnesium silicate. Elution is carried out first with methylene chloride, then with methylene chloride containing 0.5% of acetone, and 0.361 g is thus recovered of a crude product, which is dissolved in 1.5 cc of isopropyl ether; then hot methanol is added and the mixture left at 0°C for one night.
0.324 g of the desired 17β-benzoyloxy-estra-4,9,11-trien-3-one are thus finally obtained, being a yield of 85%, melting point is 154°C.
Stage B: Preparation of 17β-Hydroxy-Estra-4,9,11-Trien-3-one - 3 g of 17β- benzoyloxy-estra-4,9,11-trien-3-one, obtained as described in Stage A are dissolved in 15 cc of methanol. 0.03 g of hydroquinone is added, and the mixture is taken to reflux while bubbling in nitrogen. Then 1.2 cc of 11% methanolic caustic potash is added and reflux is maintained for three hours, after which the reaction product is acidified with 0.36 cc of acetic acid. The methyl benzoate thus formed is eliminated by steam distillation, and 2.140 g of crude product are obtained, which are dissolved in 20 cc of methylene chloride. This solution is passed through 10 parts of magnesium silicate, elution being performed with 250 cc of methylene chloride containing 5% of acetone. After evaporation of the solvent 2.050 g of product is recovered, which is recrystallized from isopropyl ether.
In this way 1.930 g of the desired 17β-hydroxy-estra-4,9,11-trien-3-one is obtained being a yield of 89%, melting point is 186°C. It is converted to the acetate by acetic anhydride.

brand name

[Trenbolone is INN and BAN.

Therapeutic Function

Anabolic steroid

Safety Profile

When heated to decomposition it emits acrid smoke and irritating fumes.

References

https://en.wikipedia.org/wiki/Trenbolone
https://www.steroid.com/Trenbolone.php
Škorjanc, D, M. Brus, and I. Vojtic. "A short review of chain controlling systems in livestock production technology. " Agricultura (2005).

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