654070-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 654070-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,4,0,7 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 654070-31:
(8*6)+(7*5)+(6*4)+(5*0)+(4*7)+(3*0)+(2*3)+(1*1)=142
142 % 10 = 2
So 654070-31-2 is a valid CAS Registry Number.