669055-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 669055-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,9,0,5 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 669055-53:
(8*6)+(7*6)+(6*9)+(5*0)+(4*5)+(3*5)+(2*5)+(1*3)=192
192 % 10 = 2
So 669055-53-2 is a valid CAS Registry Number.