2549-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2549-01-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,4 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2549-01:
(6*2)+(5*5)+(4*4)+(3*9)+(2*0)+(1*1)=81
81 % 10 = 1
So 2549-01-1 is a valid CAS Registry Number.