290304-27-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 290304-27-7 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 4 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 290304-27:
(8*2)+(7*9)+(6*0)+(5*3)+(4*0)+(3*4)+(2*2)+(1*7)=117
117 % 10 = 7
So 290304-27-7 is a valid CAS Registry Number.