39542-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39542-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,4 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 39542-68:
(7*3)+(6*9)+(5*5)+(4*4)+(3*2)+(2*6)+(1*8)=142
142 % 10 = 2
So 39542-68-2 is a valid CAS Registry Number.