40128-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40128-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,2 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40128-77:
(7*4)+(6*0)+(5*1)+(4*2)+(3*8)+(2*7)+(1*7)=86
86 % 10 = 6
So 40128-77-6 is a valid CAS Registry Number.