1220171-68-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1220171-68-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,1,7 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1220171-68:
(9*1)+(8*2)+(7*2)+(6*0)+(5*1)+(4*7)+(3*1)+(2*6)+(1*8)=95
95 % 10 = 5
So 1220171-68-5 is a valid CAS Registry Number.