135121-02-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135121-02-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,1,2 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 135121-02:
(8*1)+(7*3)+(6*5)+(5*1)+(4*2)+(3*1)+(2*0)+(1*2)=77
77 % 10 = 7
So 135121-02-7 is a valid CAS Registry Number.
135121-02-7Relevant academic research and scientific papers
Synthetic approaches towards 4-(silylmethyl)-2-azetidinones
Nativi,Perrotta,Ricci,Taddei
, p. 2265 - 2268 (2007/10/02)
Differently substituted 4-(silylmethyl)-2-azetidinones were prepared starting form the corresponding 4-acetoxy-2-azetidinones with silylmethylmagnesium chlorides. The same kind of β-lactams were synthesized 'via' cycloaddition of allylsilanes and chlorosulfonyl isocyanate (CSI).
