65239-71-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65239-71-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,2,3 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 65239-71:
(7*6)+(6*5)+(5*2)+(4*3)+(3*9)+(2*7)+(1*1)=136
136 % 10 = 6
So 65239-71-6 is a valid CAS Registry Number.