1291105-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1291105-19-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,1,1,0 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1291105-19:
(9*1)+(8*2)+(7*9)+(6*1)+(5*1)+(4*0)+(3*5)+(2*1)+(1*9)=125
125 % 10 = 5
So 1291105-19-5 is a valid CAS Registry Number.