117901-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117901-12-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,0 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117901-12:
(8*1)+(7*1)+(6*7)+(5*9)+(4*0)+(3*1)+(2*1)+(1*2)=109
109 % 10 = 9
So 117901-12-9 is a valid CAS Registry Number.
117901-12-9Relevant articles and documents
Synthese de N-(hydroxyphenyl)-azetidinone-2
Costerousse, Germain,Cagniant, Alain,Teutsch, Georges
, p. 151 - 159 (2007/10/02)
Substituted N-(hydroxyphenyl)-azetidinones 3 and 10 have been prepared by cyclisation of arylamides from N-Boc-L-Serine.It has been established that this reaction occured without racemization.Cleavage of the protecting group followed by coupling with N-tr
