123768-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123768-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,6 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 123768-20:
(8*1)+(7*2)+(6*3)+(5*7)+(4*6)+(3*8)+(2*2)+(1*0)=127
127 % 10 = 7
So 123768-20-7 is a valid CAS Registry Number.