128155-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128155-87-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,5 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128155-87:
(8*1)+(7*2)+(6*8)+(5*1)+(4*5)+(3*5)+(2*8)+(1*7)=133
133 % 10 = 3
So 128155-87-3 is a valid CAS Registry Number.