1217620-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217620-19-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,6,2 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1217620-19:
(9*1)+(8*2)+(7*1)+(6*7)+(5*6)+(4*2)+(3*0)+(2*1)+(1*9)=123
123 % 10 = 3
So 1217620-19-3 is a valid CAS Registry Number.