257937-14-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257937-14-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,3 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 257937-14:
(8*2)+(7*5)+(6*7)+(5*9)+(4*3)+(3*7)+(2*1)+(1*4)=177
177 % 10 = 7
So 257937-14-7 is a valid CAS Registry Number.