104939-54-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104939-54-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,3 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 104939-54:
(8*1)+(7*0)+(6*4)+(5*9)+(4*3)+(3*9)+(2*5)+(1*4)=130
130 % 10 = 0
So 104939-54-0 is a valid CAS Registry Number.