254980-61-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254980-61-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,9,8 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 254980-61:
(8*2)+(7*5)+(6*4)+(5*9)+(4*8)+(3*0)+(2*6)+(1*1)=165
165 % 10 = 5
So 254980-61-5 is a valid CAS Registry Number.