3346-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3346-21-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,4 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3346-21:
(6*3)+(5*3)+(4*4)+(3*6)+(2*2)+(1*1)=72
72 % 10 = 2
So 3346-21-2 is a valid CAS Registry Number.