128907-30-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128907-30-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,0 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128907-30:
(8*1)+(7*2)+(6*8)+(5*9)+(4*0)+(3*7)+(2*3)+(1*0)=142
142 % 10 = 2
So 128907-30-2 is a valid CAS Registry Number.