78321-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78321-23-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,2 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78321-23:
(7*7)+(6*8)+(5*3)+(4*2)+(3*1)+(2*2)+(1*3)=130
130 % 10 = 0
So 78321-23-0 is a valid CAS Registry Number.