Estra-4,9-diene-3,17-dione 5173-46-6 CAS NO.5173-46-6

1.High quality : the purity is 99% min . through multiple producing procedures.

2.Competitive price : low price because of our skilled  production technolpgy ,save the production cost at most , and give big profit room to our customers

3.Safe and fast delivery : we have professional shipment team for each package , the best shipping lines , each package can reach safe ly and fastly .

4.Varied shipment methods  : We can ship via EMS , HKEMS ,FEDEX ,DHL ,TNT,UPS for small packages (from 100g to 10kgs ), and by air or by sea for big quantity . Once ship out , there is a tracking number for your package , you can follow it online, more convenient

5.Good service : 100g order or 100kgs order , we will treat as the same . thinking of all possible problems for the customer ,giving the best  suggestions , and good professional guide for the products 

Name		Estra-4,9-diene-3,17-dione
Synonyms		19-Norandrosta-4,9-diene-3,17-dione
Molecular Structure
Molecular Formula		C19H20O2
Molecular Weight		280.36
CAS Registry Number		5173-46-6

Dienedione (estra-4,9-diene-3,17-dione) is an anabolic steroid and a precursor to dienolone. It became a controlled substance in the US on January 4, 2010, and is classified as a Schedule III anabolic steroid under the United States Controlled Substances Act. Previous to this, it was sold as a bodybuilding supplement within the United States, and often mistakenly marketed as a prohormone for trenbolone, a veterinary steroid. Prior to its scheduling, it was part of a number of supplements that were seized during FDA enforcement of Bodybuilding.com for selling unapproved new drugs.The actual target steroid, dienolone has some structural similarity to trenbolone, but lacks the 11-carbon -ene bond.