27257-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27257-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,2,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 27257-23:
(7*2)+(6*7)+(5*2)+(4*5)+(3*7)+(2*2)+(1*3)=114
114 % 10 = 4
So 27257-23-4 is a valid CAS Registry Number.