78109-03-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78109-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,0 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78109-03:
(7*7)+(6*8)+(5*1)+(4*0)+(3*9)+(2*0)+(1*3)=132
132 % 10 = 2
So 78109-03-2 is a valid CAS Registry Number.