6β-Fluor-17α-ethinyl-androstan-5α,17β-diol-3-on-17-acetat, also known as 6β-fluoro-17α-ethinyl-5α-androstan-17β-diol-3-one 17-acetate, is a synthetic steroid derivative. It is a modified version of the naturally occurring hormone testosterone, with a fluorine atom at the 6β position and an ethinyl group at the 17α position. This chemical structure modification is designed to alter the pharmacological properties of the molecule, potentially enhancing its anabolic effects while reducing androgenic side effects. The 17-acetate group is a protective acetyl group that can be removed in the body to release the active steroid. 6β-Fluor-17α-ethinyl-androstan-5α,17β-diol-3-on-17-acetat is of interest in the field of pharmaceuticals and sports medicine due to its potential applications in muscle growth and performance enhancement, although its use is regulated and may be subject to anti-doping rules in competitive sports.
The CAS Registry Mumber 339-09-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,3 and 9 respectively; the second part has 2 digits, 0 and 9 respectively. Calculate Digit Verification of CAS Registry Number 339-09: (5*3)+(4*3)+(3*9)+(2*0)+(1*9)=63 63 % 10 = 3 So 339-09-3 is a valid CAS Registry Number.