257637-46-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257637-46-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,6,3 and 7 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 257637-46:
(8*2)+(7*5)+(6*7)+(5*6)+(4*3)+(3*7)+(2*4)+(1*6)=170
170 % 10 = 0
So 257637-46-0 is a valid CAS Registry Number.