82321-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82321-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,3,2 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82321-31:
(7*8)+(6*2)+(5*3)+(4*2)+(3*1)+(2*3)+(1*1)=101
101 % 10 = 1
So 82321-31-1 is a valid CAS Registry Number.