54671-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54671-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,6,7 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54671-49:
(7*5)+(6*4)+(5*6)+(4*7)+(3*1)+(2*4)+(1*9)=137
137 % 10 = 7
So 54671-49-7 is a valid CAS Registry Number.