82210-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82210-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,2,1 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 82210-57:
(7*8)+(6*2)+(5*2)+(4*1)+(3*0)+(2*5)+(1*7)=99
99 % 10 = 9
So 82210-57-9 is a valid CAS Registry Number.
82210-57-9Relevant academic research and scientific papers
Total Synthesis of Mono- and Dimethoxy-5,8-seco-6,7-bisnorsteroids
Kasturi, T. R.,Reddy, S. Madhava
, p. 8 - 12 (2007/10/02)
Reaction of 2',6'-dimethoxyacetophenone with vinylmagnesium bromide followed by condensation with 2-methylcyclopentane-1,3-dione gives the seco-dione (Ic) in good yield.Cyclodehydration of seco-diones (Ia-c) affords the corresponding pentaenones (2a-c).Na
