121407-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121407-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,0 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121407-20:
(8*1)+(7*2)+(6*1)+(5*4)+(4*0)+(3*7)+(2*2)+(1*0)=73
73 % 10 = 3
So 121407-20-3 is a valid CAS Registry Number.
121407-20-3Relevant academic research and scientific papers
2-(HETEROATOM-SUBSTITUTED) METHYL PENEMS.II. SULPHINYL AND SULPHONYL DERIVATIVES.
Alpegiani, Marco,Perrone, Ettore,Franceschi, Giovanni
, p. 49 - 56 (2007/10/02)
Thermodynamic control of the endo-exo double bond equilibration in 2-(thio-substituted)methyl penems allowed the synthesis of sulphinyl and sulphonyl derivatives, which proved to be potent antibacterial agents.
