123947-29-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123947-29-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,4 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 123947-29:
(8*1)+(7*2)+(6*3)+(5*9)+(4*4)+(3*7)+(2*2)+(1*9)=135
135 % 10 = 5
So 123947-29-5 is a valid CAS Registry Number.