905601-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 905601-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,5,6,0 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 905601-31:
(8*9)+(7*0)+(6*5)+(5*6)+(4*0)+(3*1)+(2*3)+(1*1)=142
142 % 10 = 2
So 905601-31-2 is a valid CAS Registry Number.