212497-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212497-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,4,9 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 212497-45:
(8*2)+(7*1)+(6*2)+(5*4)+(4*9)+(3*7)+(2*4)+(1*5)=125
125 % 10 = 5
So 212497-45-5 is a valid CAS Registry Number.