75129-52-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75129-52-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,2 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75129-52:
(7*7)+(6*5)+(5*1)+(4*2)+(3*9)+(2*5)+(1*2)=131
131 % 10 = 1
So 75129-52-1 is a valid CAS Registry Number.