69957-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69957-43-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,5 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 69957-43:
(7*6)+(6*9)+(5*9)+(4*5)+(3*7)+(2*4)+(1*3)=193
193 % 10 = 3
So 69957-43-3 is a valid CAS Registry Number.