1309569-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1309569-80-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,5,6 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1309569-80:
(9*1)+(8*3)+(7*0)+(6*9)+(5*5)+(4*6)+(3*9)+(2*8)+(1*0)=179
179 % 10 = 9
So 1309569-80-9 is a valid CAS Registry Number.