1621174-60-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621174-60-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,1,7 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1621174-60:
(9*1)+(8*6)+(7*2)+(6*1)+(5*1)+(4*7)+(3*4)+(2*6)+(1*0)=134
134 % 10 = 4
So 1621174-60-4 is a valid CAS Registry Number.