1417991-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1417991-40-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,7,9,9 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1417991-40:
(9*1)+(8*4)+(7*1)+(6*7)+(5*9)+(4*9)+(3*1)+(2*4)+(1*0)=182
182 % 10 = 2
So 1417991-40-2 is a valid CAS Registry Number.