263393-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263393-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,3,9 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 263393-87:
(8*2)+(7*6)+(6*3)+(5*3)+(4*9)+(3*3)+(2*8)+(1*7)=159
159 % 10 = 9
So 263393-87-9 is a valid CAS Registry Number.