107743-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107743-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,7,4 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 107743-63:
(8*1)+(7*0)+(6*7)+(5*7)+(4*4)+(3*3)+(2*6)+(1*3)=125
125 % 10 = 5
So 107743-63-5 is a valid CAS Registry Number.