778537-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 778537-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,8,5,3 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 778537-26:
(8*7)+(7*7)+(6*8)+(5*5)+(4*3)+(3*7)+(2*2)+(1*6)=221
221 % 10 = 1
So 778537-26-1 is a valid CAS Registry Number.