1313054-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1313054-81-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,0,5 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1313054-81:
(9*1)+(8*3)+(7*1)+(6*3)+(5*0)+(4*5)+(3*4)+(2*8)+(1*1)=107
107 % 10 = 7
So 1313054-81-7 is a valid CAS Registry Number.