155309-71-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155309-71-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,3,0 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155309-71:
(8*1)+(7*5)+(6*5)+(5*3)+(4*0)+(3*9)+(2*7)+(1*1)=130
130 % 10 = 0
So 155309-71-0 is a valid CAS Registry Number.