211128-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211128-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,1,2 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 211128-40:
(8*2)+(7*1)+(6*1)+(5*1)+(4*2)+(3*8)+(2*4)+(1*0)=74
74 % 10 = 4
So 211128-40-4 is a valid CAS Registry Number.