53742-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53742-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,7,4 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 53742-69:
(7*5)+(6*3)+(5*7)+(4*4)+(3*2)+(2*6)+(1*9)=131
131 % 10 = 1
So 53742-69-1 is a valid CAS Registry Number.