78681-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78681-13-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,6,8 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78681-13:
(7*7)+(6*8)+(5*6)+(4*8)+(3*1)+(2*1)+(1*3)=167
167 % 10 = 7
So 78681-13-7 is a valid CAS Registry Number.