78842-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78842-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,4 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 78842-12:
(7*7)+(6*8)+(5*8)+(4*4)+(3*2)+(2*1)+(1*2)=163
163 % 10 = 3
So 78842-12-3 is a valid CAS Registry Number.