40782-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40782-34-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,8 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 40782-34:
(7*4)+(6*0)+(5*7)+(4*8)+(3*2)+(2*3)+(1*4)=111
111 % 10 = 1
So 40782-34-1 is a valid CAS Registry Number.
40782-34-1Relevant academic research and scientific papers
Intermediates for and synthesis of 3-methylene cephams
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, (2008/06/13)
The present invention relates to novel processes for the preparation of 3-methylenecephams. More specifically, the present invention relates in part to the intramolecular cyclization of penicillin sulfoxide derived monocyclic azetidinone derivatives either thermally or with lanthanide metal salt catalysts.
