100654-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100654-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,6,5 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 100654-67:
(8*1)+(7*0)+(6*0)+(5*6)+(4*5)+(3*4)+(2*6)+(1*7)=89
89 % 10 = 9
So 100654-67-9 is a valid CAS Registry Number.