321431-25-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321431-25-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,4,3 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 321431-25:
(8*3)+(7*2)+(6*1)+(5*4)+(4*3)+(3*1)+(2*2)+(1*5)=88
88 % 10 = 8
So 321431-25-8 is a valid CAS Registry Number.