164019-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164019-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,0,1 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164019-31:
(8*1)+(7*6)+(6*4)+(5*0)+(4*1)+(3*9)+(2*3)+(1*1)=112
112 % 10 = 2
So 164019-31-2 is a valid CAS Registry Number.