100504-97-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100504-97-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,5,0 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 100504-97:
(8*1)+(7*0)+(6*0)+(5*5)+(4*0)+(3*4)+(2*9)+(1*7)=70
70 % 10 = 0
So 100504-97-0 is a valid CAS Registry Number.