99856-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99856-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,5 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99856-77:
(7*9)+(6*9)+(5*8)+(4*5)+(3*6)+(2*7)+(1*7)=216
216 % 10 = 6
So 99856-77-6 is a valid CAS Registry Number.