98305-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98305-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,3,0 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98305-77:
(7*9)+(6*8)+(5*3)+(4*0)+(3*5)+(2*7)+(1*7)=162
162 % 10 = 2
So 98305-77-2 is a valid CAS Registry Number.