442900-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442900-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,9,0 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 442900-72:
(8*4)+(7*4)+(6*2)+(5*9)+(4*0)+(3*0)+(2*7)+(1*2)=133
133 % 10 = 3
So 442900-72-3 is a valid CAS Registry Number.