78109-51-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78109-51-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,0 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78109-51:
(7*7)+(6*8)+(5*1)+(4*0)+(3*9)+(2*5)+(1*1)=140
140 % 10 = 0
So 78109-51-0 is a valid CAS Registry Number.
78109-51-0Relevant articles and documents
Preparation of 4-haloazetidin-2-ones from 4-sulfinoazetidin-2-ones
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, (2008/06/13)
Process for 4-halo azetidinones of the formula STR1 wherein R1 is acylamino or diacylamino, X is chloro, bromo or iodo, and R is a carboxy-protecting group which comprises treating a 4-sulfinoazetidinone of the formula STR2 with positive haloge
