<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE amino-acid SYSTEM "aminoacids.dtd">
<amino-acid>
   <name>Aspartic Acid</name>
   <abbreviation>asp</abbreviation>
   <symbol>d</symbol>
   <molecular-formula>C4H7NO4</molecular-formula>
   <molecular-weight>133.10</molecular-weight>
   <isoelectric-point>2.77</isoelectric-point>
   <CAS-registry-number>56-84-8</CAS-registry-number>
</amino-acid>
