99877-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99877-58-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,7 and 7 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99877-58:
(7*9)+(6*9)+(5*8)+(4*7)+(3*7)+(2*5)+(1*8)=224
224 % 10 = 4
So 99877-58-4 is a valid CAS Registry Number.