94209-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94209-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,2,0 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 94209-55:
(7*9)+(6*4)+(5*2)+(4*0)+(3*9)+(2*5)+(1*5)=139
139 % 10 = 9
So 94209-55-9 is a valid CAS Registry Number.