109576-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109576-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,7 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109576-91:
(8*1)+(7*0)+(6*9)+(5*5)+(4*7)+(3*6)+(2*9)+(1*1)=152
152 % 10 = 2
So 109576-91-2 is a valid CAS Registry Number.
109576-91-2Relevant academic research and scientific papers
A NEW APPROACH TO THE CARBAPENAM NUCLEUS THROUGH AN INTRAMOLECULAR N-HETEROCYCLIZATION
Dumas, Francoise,d'Angelo, Jean
, p. 3725 - 3728 (2007/10/02)
A new approach to the carbapenam nucleus is described.The starting ester 4a was converted, via a solvomercuration process, to a mixture of the iodoesters 11 and 12.Baseinduced cyclization of epimer 11 led to carbapenam derivative 14.
