21178-48-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21178-48-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,7 and 8 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21178-48:
(7*2)+(6*1)+(5*1)+(4*7)+(3*8)+(2*4)+(1*8)=93
93 % 10 = 3
So 21178-48-3 is a valid CAS Registry Number.