297147-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 297147-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,7,1,4 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 297147-40:
(8*2)+(7*9)+(6*7)+(5*1)+(4*4)+(3*7)+(2*4)+(1*0)=171
171 % 10 = 1
So 297147-40-1 is a valid CAS Registry Number.