75437-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75437-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,3 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75437-17:
(7*7)+(6*5)+(5*4)+(4*3)+(3*7)+(2*1)+(1*7)=141
141 % 10 = 1
So 75437-17-1 is a valid CAS Registry Number.