84211-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84211-28-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,1 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 84211-28:
(7*8)+(6*4)+(5*2)+(4*1)+(3*1)+(2*2)+(1*8)=109
109 % 10 = 9
So 84211-28-9 is a valid CAS Registry Number.
InChI:InChI=1/C8H9NO4/c1-13-6-3-4(8(11)12)2-5(9)7(6)10/h2-3,10H,9H2,1H3,(H,11,12)