77256-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77256-26-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,5 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77256-26:
(7*7)+(6*7)+(5*2)+(4*5)+(3*6)+(2*2)+(1*6)=149
149 % 10 = 9
So 77256-26-9 is a valid CAS Registry Number.