128125-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128125-98-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,2 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128125-98:
(8*1)+(7*2)+(6*8)+(5*1)+(4*2)+(3*5)+(2*9)+(1*8)=124
124 % 10 = 4
So 128125-98-4 is a valid CAS Registry Number.