1247781-17-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1247781-17-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,7,7,8 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1247781-17:
(9*1)+(8*2)+(7*4)+(6*7)+(5*7)+(4*8)+(3*1)+(2*1)+(1*7)=174
174 % 10 = 4
So 1247781-17-4 is a valid CAS Registry Number.