21282-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21282-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,8 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21282-89:
(7*2)+(6*1)+(5*2)+(4*8)+(3*2)+(2*8)+(1*9)=93
93 % 10 = 3
So 21282-89-3 is a valid CAS Registry Number.