1621684-17-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621684-17-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,6,8 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1621684-17:
(9*1)+(8*6)+(7*2)+(6*1)+(5*6)+(4*8)+(3*4)+(2*1)+(1*7)=160
160 % 10 = 0
So 1621684-17-0 is a valid CAS Registry Number.