1134374-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1134374-57-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,4,3,7 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1134374-57:
(9*1)+(8*1)+(7*3)+(6*4)+(5*3)+(4*7)+(3*4)+(2*5)+(1*7)=134
134 % 10 = 4
So 1134374-57-4 is a valid CAS Registry Number.