128500-41-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128500-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,0 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128500-41:
(8*1)+(7*2)+(6*8)+(5*5)+(4*0)+(3*0)+(2*4)+(1*1)=104
104 % 10 = 4
So 128500-41-4 is a valid CAS Registry Number.