98920-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98920-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,2 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98920-17:
(7*9)+(6*8)+(5*9)+(4*2)+(3*0)+(2*1)+(1*7)=173
173 % 10 = 3
So 98920-17-3 is a valid CAS Registry Number.
98920-17-3Relevant academic research and scientific papers
A Total Synthesis of Estradiol and its 6,6-Dimethyl Analogue
Collins, Mark A.,Jones, D. Neville
, p. 4467 - 4470 (2007/10/02)
A short, stereoselective synthesis of estradiol, and its 6,6-dimethyl analogue, was accomplished from non-steroidal starting materials.A key feature was the use of a benzothiophene unit to effect (i) the stereoselective formation of the required 8β-H c
