P Stanz

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P-Stanz


Nomenclature: [3,2-c]pyrazole-5alpha-etioallocholane-17beta-tetrahydropyranol or 17beta-tetrahydropyranol-5alpha-androstano-[3,2-c]pyrazole

Synonyms: CEL P-Stanz, ALRI Prostanozol, Generic Labz Mega-Zol, unmethylated winstrol.

Prostanozol is an unmethylated version of the popular - but illegal - steroid stanozolol, a.k.a. "winstrol" or "winny". Here's the two structural diagrams side by side:

24v1lqu.jpg

[1]

As you can see, although it lacks the 17a-alkylation of winstrol, it has (like the Furaza-A previously discussed) a THP ether to increase bioavailability through uptake by the lymphatic system.

The obvious unique features of these compounds are the furazan and pyrazole rings attached to the A-ring. These are examples of 5-membered heterocycles (another highly amusing example would be Arsole), about which Vida had this to say:

zlu5id.jpg

[2]

While prostanozol is the best legal stanozolol derivative we currently have on the market, just as with furazabol the 4-ene derivative (a steroid I call "testozolol") would be worth considering.



Fortunately for us, researchers in the 1960s tested stanozolol and "testozolol" against each other, removing the guesswork from the situation. Displaying 46.5% of the androgenicity and 61.5% of the anabolism of stanozolol by oral administration, although being slightly weaker it should still possess a very positive A:A ratio, and according to the researchers, some estrogenic activity. [3]

Much like Furaza-A, Prostanozol is a mild compound likely to be expensive to run at effective doses, and will be best used either solo to retain muscle mass while cutting, or in conjunction with another compound to add hardening effects and lean gains without adding too much to the overall toxicity and side-effects of a cycle.

Prostanozol was added to Schedule 2 of the UK Misuse of Drugs Act 1971 (effective 23rd December 2009), making it illegal to sell, and illegal to possess in distribution quantities in the UK. It remains unscheduled (at the time of writing) in the US. [4]


References:
[1] Journal of Steroid Biochemistry & Molecular Biology 101 (2006) 161–178
[2] Julius Vida, Androgens and Anabolic Agents
[3] Influence of molecular unsaturation on hormonal activity pattern of certain heterocyclic steroids
[4] The Misuse of Drugs Act 1971 (Amendment) Order 2009
 
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