290354-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 290354-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,3,5 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 290354-23:
(8*2)+(7*9)+(6*0)+(5*3)+(4*5)+(3*4)+(2*2)+(1*3)=133
133 % 10 = 3
So 290354-23-3 is a valid CAS Registry Number.