87796-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87796-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,9 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87796-80:
(7*8)+(6*7)+(5*7)+(4*9)+(3*6)+(2*8)+(1*0)=203
203 % 10 = 3
So 87796-80-3 is a valid CAS Registry Number.
87796-80-3Relevant academic research and scientific papers
Seco-dethiacephalosporins
Wei,Borgese,Weigele
, p. 1875 - 1878 (2007/10/02)
Penicillins are converted to 'Seco-dethiacephalosporins' in a sequence consisting of Ra-Ni desulfurization, epoxidation, epoxide rearrangement and introduction of a heteroarylsulfide by nucleophilic substitution.
