1609240-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609240-16-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,2,4 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1609240-16:
(9*1)+(8*6)+(7*0)+(6*9)+(5*2)+(4*4)+(3*0)+(2*1)+(1*6)=145
145 % 10 = 5
So 1609240-16-5 is a valid CAS Registry Number.