1684441-80-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1684441-80-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,8,4,4,4 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1684441-80:
(9*1)+(8*6)+(7*8)+(6*4)+(5*4)+(4*4)+(3*1)+(2*8)+(1*0)=192
192 % 10 = 2
So 1684441-80-2 is a valid CAS Registry Number.