1234173-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1234173-05-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,1,7 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1234173-05:
(9*1)+(8*2)+(7*3)+(6*4)+(5*1)+(4*7)+(3*3)+(2*0)+(1*5)=117
117 % 10 = 7
So 1234173-05-7 is a valid CAS Registry Number.