297137-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 297137-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,7,1,3 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 297137-26:
(8*2)+(7*9)+(6*7)+(5*1)+(4*3)+(3*7)+(2*2)+(1*6)=169
169 % 10 = 9
So 297137-26-9 is a valid CAS Registry Number.