442650-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442650-53-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,5 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 442650-53:
(8*4)+(7*4)+(6*2)+(5*6)+(4*5)+(3*0)+(2*5)+(1*3)=135
135 % 10 = 5
So 442650-53-5 is a valid CAS Registry Number.