75031-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75031-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,0,3 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75031-63:
(7*7)+(6*5)+(5*0)+(4*3)+(3*1)+(2*6)+(1*3)=109
109 % 10 = 9
So 75031-63-9 is a valid CAS Registry Number.