678197-26-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 678197-26-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,8,1,9 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 678197-26:
(8*6)+(7*7)+(6*8)+(5*1)+(4*9)+(3*7)+(2*2)+(1*6)=217
217 % 10 = 7
So 678197-26-7 is a valid CAS Registry Number.