137272-05-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137272-05-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,7 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137272-05:
(8*1)+(7*3)+(6*7)+(5*2)+(4*7)+(3*2)+(2*0)+(1*5)=120
120 % 10 = 0
So 137272-05-0 is a valid CAS Registry Number.
137272-05-0Relevant academic research and scientific papers
A convenient synthesis of β-lactams from alkylthioimidates
Grochowski, Edward,Pupek, Krzysztof
, p. 6759 - 6768 (2007/10/02)
Stereoselective syntheses of trans-3,4,4-substituted-azetidin-2-ones from alkylthioimidates are described. Reduction of these compounds gave stereoselectively cis-4-alkyl-azetidin-2-ones which could be useful intermediates for preparation of biologically
