1313497-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1313497-83-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,4,9 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1313497-83:
(9*1)+(8*3)+(7*1)+(6*3)+(5*4)+(4*9)+(3*7)+(2*8)+(1*3)=154
154 % 10 = 4
So 1313497-83-4 is a valid CAS Registry Number.