1217862-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217862-65-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,8,6 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1217862-65:
(9*1)+(8*2)+(7*1)+(6*7)+(5*8)+(4*6)+(3*2)+(2*6)+(1*5)=161
161 % 10 = 1
So 1217862-65-1 is a valid CAS Registry Number.