53431-27-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53431-27-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,4,3 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 53431-27:
(7*5)+(6*3)+(5*4)+(4*3)+(3*1)+(2*2)+(1*7)=99
99 % 10 = 9
So 53431-27-9 is a valid CAS Registry Number.