How much actual testosterone in solution?

[S1W]

I know I've seen information on this here before, but I haven't been able to find it with a search.

Assuming you have 200mg/ml Testosterone Cypionate, how do you calculate how much actual testosterone is in the solution (less ester, benzyl benzoate, benzyl alcohol, etc)?

For example, if a guy were to inject .1ml, we say that's 20mg of testosterone. But how much actual testosterone would there be in that injection, as some of that volume is made up of other things?

 

[Vince Carter]

For insurance purposes a few years ago as I was trying to wring a nickle out of them for the price of a vial they made me go back to the compounder and get the atomic weights of all ingredients. I can't recite that stuff but there's 5-8 ingredients if I remember right. Would be interesting if someone still had access to something like that.

(never got my nickle from them, btw)

 

[abe]

Testosterone cypionate 200 mg
Benzyl benzoate 0.2 mL
Cottonseed oil 560 mg
Benzyl alcohol (as preservative)9.45 mg

Testosterone Cypionate Injection, USP100 mg/mL and 200 mg/mL

 

[fifty]

Enanthate vs cypionate Concentrations

 

[Cataceous]

...
Assuming you have 200mg/ml Testosterone Cypionate, how do you calculate how much actual testosterone is in the solution (less ester, benzyl benzoate, benzyl alcohol, etc)?

For example, if a guy were to inject .1ml, we say that's 20mg of testosterone. But how much actual testosterone would there be in that injection, as some of that volume is made up of other things?

The concentration of 200 mg/mL refers to the weight of testosterone plus the attached ester per given unit of volume. For T cypionate the testosterone makes up 69.9% of the total ester weight. Therefore the concentration of pure testosterone is about 140 mg/mL. A guy injecting 0.1 mL is injecting 20 mg of testosterone cypionate, which includes about 14 mg of pure testosterone.

 

[S1W]

The concentration of 200 mg/mL refers to the weight of testosterone plus the attached ester per given unit of volume. For T cypionate the testosterone makes up 69.9% of the total ester weight. Therefore the concentration of pure testosterone is about 140 mg/mL. A guy injecting 0.1 mL is injecting 20 mg of testosterone cypionate, which includes about 14 mg of pure testosterone.

Thanks Cataceous - exactly what I was looking for. Really appreciate having you around here.