254747-54-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254747-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,7,4 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 254747-54:
(8*2)+(7*5)+(6*4)+(5*7)+(4*4)+(3*7)+(2*5)+(1*4)=161
161 % 10 = 1
So 254747-54-1 is a valid CAS Registry Number.