21464-56-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21464-56-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,6 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21464-56:
(7*2)+(6*1)+(5*4)+(4*6)+(3*4)+(2*5)+(1*6)=92
92 % 10 = 2
So 21464-56-2 is a valid CAS Registry Number.