78840-15-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78840-15-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,4 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78840-15:
(7*7)+(6*8)+(5*8)+(4*4)+(3*0)+(2*1)+(1*5)=160
160 % 10 = 0
So 78840-15-0 is a valid CAS Registry Number.