99333-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99333-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,3,3 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99333-74:
(7*9)+(6*9)+(5*3)+(4*3)+(3*3)+(2*7)+(1*4)=171
171 % 10 = 1
So 99333-74-1 is a valid CAS Registry Number.
99333-74-1Relevant academic research and scientific papers
The asymmetric synthesis of β-lactam antibiotics. II. The first enantioselective synthesis of the carbacephalosporin nucleus
Evans,Sjogren
, p. 3787 - 3790 (2007/10/02)
The application of asymmetric ketene-imine cycloadditions to the first enantioselective synthesis of the carbacephalosporin nucleus is described.
