69547-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69547-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,5,4 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69547-69:
(7*6)+(6*9)+(5*5)+(4*4)+(3*7)+(2*6)+(1*9)=179
179 % 10 = 9
So 69547-69-9 is a valid CAS Registry Number.