263163-03-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263163-03-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,1,6 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 263163-03:
(8*2)+(7*6)+(6*3)+(5*1)+(4*6)+(3*3)+(2*0)+(1*3)=117
117 % 10 = 7
So 263163-03-7 is a valid CAS Registry Number.