13302-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13302-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,0 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13302-21:
(7*1)+(6*3)+(5*3)+(4*0)+(3*2)+(2*2)+(1*1)=51
51 % 10 = 1
So 13302-21-1 is a valid CAS Registry Number.