99768-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99768-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,6 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99768-59:
(7*9)+(6*9)+(5*7)+(4*6)+(3*8)+(2*5)+(1*9)=219
219 % 10 = 9
So 99768-59-9 is a valid CAS Registry Number.