117779-66-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117779-66-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,7 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 117779-66:
(8*1)+(7*1)+(6*7)+(5*7)+(4*7)+(3*9)+(2*6)+(1*6)=165
165 % 10 = 5
So 117779-66-5 is a valid CAS Registry Number.