1305209-56-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1305209-56-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,5,2,0 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1305209-56:
(9*1)+(8*3)+(7*0)+(6*5)+(5*2)+(4*0)+(3*9)+(2*5)+(1*6)=116
116 % 10 = 6
So 1305209-56-6 is a valid CAS Registry Number.