1241834-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1241834-19-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,1,8,3 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1241834-19:
(9*1)+(8*2)+(7*4)+(6*1)+(5*8)+(4*3)+(3*4)+(2*1)+(1*9)=134
134 % 10 = 4
So 1241834-19-4 is a valid CAS Registry Number.