444-37-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444-37-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,4 and 4 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 444-37:
(5*4)+(4*4)+(3*4)+(2*3)+(1*7)=61
61 % 10 = 1
So 444-37-1 is a valid CAS Registry Number.