211171-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211171-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,1,7 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 211171-40:
(8*2)+(7*1)+(6*1)+(5*1)+(4*7)+(3*1)+(2*4)+(1*0)=73
73 % 10 = 3
So 211171-40-3 is a valid CAS Registry Number.