293308-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 293308-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,3,3,0 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 293308-87:
(8*2)+(7*9)+(6*3)+(5*3)+(4*0)+(3*8)+(2*8)+(1*7)=159
159 % 10 = 9
So 293308-87-9 is a valid CAS Registry Number.