2297-41-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2297-41-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,9 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2297-41:
(6*2)+(5*2)+(4*9)+(3*7)+(2*4)+(1*1)=88
88 % 10 = 8
So 2297-41-8 is a valid CAS Registry Number.