577708-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 577708-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,7,7,0 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 577708-23:
(8*5)+(7*7)+(6*7)+(5*7)+(4*0)+(3*8)+(2*2)+(1*3)=197
197 % 10 = 7
So 577708-23-7 is a valid CAS Registry Number.
577708-23-7Relevant academic research and scientific papers
An efficient approach to 3,4-disubstituted pyridin-2-ones. Formal synthesis of mappicine ketone
Lin, Ching H.,Tsai, Min R.,Wang, Yung S.,Chang, Nein C.
, p. 5688 - 5691 (2007/10/03)
Treatment of 3,4-dihydro-3-tosylpyridin-2-one 5 with sodium hydride and then alkyl halides gave various 3,4-disubstituted pyridin-2-ones 6. Formal synthesis of mappicine ketone (1) was also reported.
