290309-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 290309-82-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,3,0 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 290309-82:
(8*2)+(7*9)+(6*0)+(5*3)+(4*0)+(3*9)+(2*8)+(1*2)=139
139 % 10 = 9
So 290309-82-9 is a valid CAS Registry Number.