testosterone esters

G

gotgear?

New member

• Jan 9, 2002

• #1

how is an ester added to testosterone?

 

Last edited: Jan 9, 2002

hookuprx

New member

• Jan 9, 2002

• #2

With tweezers..

Andy or Zyg wanna get this?

 

serge

New member

• Jan 9, 2002

• #3

its attached to the ring of the steroid molecule (i beleave its the "C" ring, but might be wrong, C-17)

 

Zyglamail

Plat Hero

Platinum

• Jan 9, 2002

• #4

I hit the question on another board. I honestly dont know the specifics, but with the use of certian chemicals etc the ester molocule is bound to the AAS molocule. I know andy was doing some work on this and would be the guy to have the chemistry specifics on it.

 

G

gotgear?

New member

• Jan 9, 2002

• #5

andy.....

is this the correct way to bind an prop or cyp ester to testosterone?


Dissolve 5g testosterone (or analog) in 25mi pyridine or dry ether and add 3g propionic anhydride (or propionyl chloride) OR cypionyl chloride (cyclopentylpropionyl chloride) to get the propionate and cypionate respectively. Let stand over night and add excess water, filter, wash, and dry.

 

Andy13

Elite Mentor

Platinum

• Jan 10, 2002

• #6

You heat the parent steroid under reflux with the carboxylic acid that corisponds to the ester you want with a little H2SO4 as the catalyst.

Andy