39713-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39713-20-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,7,1 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39713-20:
(7*3)+(6*9)+(5*7)+(4*1)+(3*3)+(2*2)+(1*0)=127
127 % 10 = 7
So 39713-20-7 is a valid CAS Registry Number.