831202-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 831202-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,1,2,0 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 831202-90:
(8*8)+(7*3)+(6*1)+(5*2)+(4*0)+(3*2)+(2*9)+(1*0)=125
125 % 10 = 5
So 831202-90-5 is a valid CAS Registry Number.