1313898-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1313898-56-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,8,9 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1313898-56:
(9*1)+(8*3)+(7*1)+(6*3)+(5*8)+(4*9)+(3*8)+(2*5)+(1*6)=174
174 % 10 = 4
So 1313898-56-4 is a valid CAS Registry Number.