72141-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72141-75-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,4 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72141-75:
(7*7)+(6*2)+(5*1)+(4*4)+(3*1)+(2*7)+(1*5)=104
104 % 10 = 4
So 72141-75-4 is a valid CAS Registry Number.