1247231-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1247231-71-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,7,2,3 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1247231-71:
(9*1)+(8*2)+(7*4)+(6*7)+(5*2)+(4*3)+(3*1)+(2*7)+(1*1)=135
135 % 10 = 5
So 1247231-71-5 is a valid CAS Registry Number.