4424-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4424-34-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,2 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4424-34:
(6*4)+(5*4)+(4*2)+(3*4)+(2*3)+(1*4)=74
74 % 10 = 4
So 4424-34-4 is a valid CAS Registry Number.