65240-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65240-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,2,4 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 65240-17:
(7*6)+(6*5)+(5*2)+(4*4)+(3*0)+(2*1)+(1*7)=107
107 % 10 = 7
So 65240-17-7 is a valid CAS Registry Number.