769966-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 769966-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,9,9,6 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 769966-55:
(8*7)+(7*6)+(6*9)+(5*9)+(4*6)+(3*6)+(2*5)+(1*5)=254
254 % 10 = 4
So 769966-55-4 is a valid CAS Registry Number.