1089-80-1 Usage
Uses
9-Dehydroestrone is a steroidal analog of Estrone (E889050), which is a metabolite of 17β-Estradiol (E888000), a degradation product of Ethynyl Estradiol (EE); an impurity of Ethynyl Estradiol (E685100).
Check Digit Verification of cas no
The CAS Registry Mumber 1089-80-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1089-80:
(6*1)+(5*0)+(4*8)+(3*9)+(2*8)+(1*0)=81
81 % 10 = 1
So 1089-80-1 is a valid CAS Registry Number.
1089-80-1Relevant articles and documents
A new route to 19-substituted steroids from 19-nor steroids: Sigmatropic [3,3] and [2,3] rearrangements revisited
Lesuisse,Canu,Tric
, p. 8491 - 8504 (2007/10/02)
Sigmatropic [3,3] and [2,3] rearrangements of 11-substituted estradienedione derivatives gave rise to new 19-substituted androstenedione analogs.
