21302-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21302-93-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,0 and 2 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21302-93:
(7*2)+(6*1)+(5*3)+(4*0)+(3*2)+(2*9)+(1*3)=62
62 % 10 = 2
So 21302-93-2 is a valid CAS Registry Number.