74457-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74457-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,5 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74457-67:
(7*7)+(6*4)+(5*4)+(4*5)+(3*7)+(2*6)+(1*7)=153
153 % 10 = 3
So 74457-67-3 is a valid CAS Registry Number.
74457-67-3Relevant academic research and scientific papers
AN ALTERNATIVE ROUTE TO 4-BENZOYL-2-AZETIDINONES
Abdulla, Riaz F.,Williams, James C.
, p. 997 - 1000 (2007/10/02)
Cyclodehydrohalogenation by terminal N1-C4 bond formation affords N-aryl-4-benzoyl-2-azetidinones from 3-benzoyl-3-bromopropionanilides in an unequivocal annelation process.
