53709-61-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53709-61-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,7,0 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53709-61:
(7*5)+(6*3)+(5*7)+(4*0)+(3*9)+(2*6)+(1*1)=128
128 % 10 = 8
So 53709-61-8 is a valid CAS Registry Number.