Something About Estra-4,9-Diene-3,17-Dione

Estra-4,9-diene-3,17-dione, also known as 19-Norandrosta-4,9 diene-3,17 dione, is a progestin similar to trenbolone, nandrolone, methyltrienolone and Methyl-Dien which are also progestin. Solid gains with minimal water retention and huge strength gains are the results.
Item name:Estra-4,9-diene-3,17-dione

CAS:5173-46-6
Molecular Formula:C18H22O2
Molecular Weight: 270.37g/mol
Specification:Enterprise standard

Ethylene dione or ethylenedione, also called dicarbon dioxide, ethenedione, or ethene 1,2-dione, is the name given to a hypothetical chemical compound with the formula C2O2 or O=C=C=O. It would be an oxide of carbon (an oxocarbon), specifically a dimer of carbon monoxide (CO). It can be thought of as ketene of glyoxylic acid (OHCCOOH).
Early theoretical studies suggested that the triplet state of C2O2 might be stable, although it would be much less so than its relatives CO2 and C3O2. However, many synthesis attempts have failed to turn up any trace of it. Recent research indicates that the molecule may be extremely short lived, decomposing into two molecules of carbon monoxide in less than 10−8 seconds.
On the other hand, the divalent anion C2O22−, called acetylenediolate, is reasonably stable in the absence of water.

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