900453-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900453-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,4,5 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 900453-55:
(8*9)+(7*0)+(6*0)+(5*4)+(4*5)+(3*3)+(2*5)+(1*5)=136
136 % 10 = 6
So 900453-55-6 is a valid CAS Registry Number.