78899-75-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78899-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,9 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78899-75:
(7*7)+(6*8)+(5*8)+(4*9)+(3*9)+(2*7)+(1*5)=219
219 % 10 = 9
So 78899-75-9 is a valid CAS Registry Number.