1544171-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1544171-91-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,4,1,7 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1544171-91:
(9*1)+(8*5)+(7*4)+(6*4)+(5*1)+(4*7)+(3*1)+(2*9)+(1*1)=156
156 % 10 = 6
So 1544171-91-6 is a valid CAS Registry Number.