75693-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75693-99-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 75693-99:
(7*7)+(6*5)+(5*6)+(4*9)+(3*3)+(2*9)+(1*9)=181
181 % 10 = 1
So 75693-99-1 is a valid CAS Registry Number.