1305348-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1305348-31-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,5,3,4 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1305348-31:
(9*1)+(8*3)+(7*0)+(6*5)+(5*3)+(4*4)+(3*8)+(2*3)+(1*1)=125
125 % 10 = 5
So 1305348-31-5 is a valid CAS Registry Number.