99883-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99883-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,8 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99883-98:
(7*9)+(6*9)+(5*8)+(4*8)+(3*3)+(2*9)+(1*8)=224
224 % 10 = 4
So 99883-98-4 is a valid CAS Registry Number.