133995-87-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133995-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,9 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133995-87:
(8*1)+(7*3)+(6*3)+(5*9)+(4*9)+(3*5)+(2*8)+(1*7)=166
166 % 10 = 6
So 133995-87-6 is a valid CAS Registry Number.
133995-87-6Relevant academic research and scientific papers
N-Acyloxy monocyclic β-lactams
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, (2008/06/13)
Process for N-acyloxy or sulfooxy 2-azetidinones comprising O-acylation of a β-hydroxy or β-halo hydroxamic acid, and cyclizing the O-acylhydroxamate with TPP-CCl4 -TEA or with TPP-dialkylazodicarboxylate to the N-acyloxy-2-azetidinone. Solvoly
