1620874-69-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620874-69-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,8,7 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1620874-69:
(9*1)+(8*6)+(7*2)+(6*0)+(5*8)+(4*7)+(3*4)+(2*6)+(1*9)=172
172 % 10 = 2
So 1620874-69-2 is a valid CAS Registry Number.