1621417-74-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621417-74-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,4,1 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1621417-74:
(9*1)+(8*6)+(7*2)+(6*1)+(5*4)+(4*1)+(3*7)+(2*7)+(1*4)=140
140 % 10 = 0
So 1621417-74-0 is a valid CAS Registry Number.