82952-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82952-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,5 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 82952-72:
(7*8)+(6*2)+(5*9)+(4*5)+(3*2)+(2*7)+(1*2)=155
155 % 10 = 5
So 82952-72-5 is a valid CAS Registry Number.
82952-72-5Relevant academic research and scientific papers
Yuan, Sun-Shine
, p. 279 - 290 (1982)
A-ring enollactones 1a, 1b or 9 derived from 4-cholesten-3-one, testosterone benzoate or 3-oxo-4-estren-17β-yl benzoate were condensed with acetyl chloride to give intermediates 2a, 2b or 10. 2a and 2b were cyclized by acid or base to give 3,4-1
