107957-83-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107957-83-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,9,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 107957-83:
(8*1)+(7*0)+(6*7)+(5*9)+(4*5)+(3*7)+(2*8)+(1*3)=155
155 % 10 = 5
So 107957-83-5 is a valid CAS Registry Number.