297730-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 297730-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,7,7,3 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 297730-04:
(8*2)+(7*9)+(6*7)+(5*7)+(4*3)+(3*0)+(2*0)+(1*4)=172
172 % 10 = 2
So 297730-04-2 is a valid CAS Registry Number.