500263-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500263-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,2,6 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 500263-40:
(8*5)+(7*0)+(6*0)+(5*2)+(4*6)+(3*3)+(2*4)+(1*0)=91
91 % 10 = 1
So 500263-40-1 is a valid CAS Registry Number.