4669-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4669-21-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,6 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4669-21:
(6*4)+(5*6)+(4*6)+(3*9)+(2*2)+(1*1)=110
110 % 10 = 0
So 4669-21-0 is a valid CAS Registry Number.