128142-58-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128142-58-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,4 and 2 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128142-58:
(8*1)+(7*2)+(6*8)+(5*1)+(4*4)+(3*2)+(2*5)+(1*8)=115
115 % 10 = 5
So 128142-58-5 is a valid CAS Registry Number.