128779-40-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128779-40-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,7 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128779-40:
(8*1)+(7*2)+(6*8)+(5*7)+(4*7)+(3*9)+(2*4)+(1*0)=168
168 % 10 = 8
So 128779-40-8 is a valid CAS Registry Number.