290365-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 290365-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,3,6 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 290365-80:
(8*2)+(7*9)+(6*0)+(5*3)+(4*6)+(3*5)+(2*8)+(1*0)=149
149 % 10 = 9
So 290365-80-9 is a valid CAS Registry Number.