<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT CommonChemistryRecords (CommonChemistryRecord+)>
<!ELEMENT CommonChemistryRecord (MolecularFormula?, NT1Name, Synonyms, Sequence?)>
<!ATTLIST CommonChemistryRecord
registryNumber CDATA #REQUIRED
>
<!ELEMENT MolecularFormula (#PCDATA)>
<!ELEMENT NT1Name (#PCDATA)>
<!ELEMENT ChemlistNames (Names+)>
<!ELEMENT Names (#PCDATA)>
<!ELEMENT Sequence (SeqLength, Notes?, HtmlNoteTable?, SequenceStrands)>
<!ELEMENT SeqLength (#PCDATA)>
<!ELEMENT Notes (Note+)>
<!ELEMENT HtmlNoteTable (TABLE)>
<!ELEMENT TABLE (THEAD, TR+)>
<!ELEMENT THEAD (TR)>
<!ELEMENT TR (TD+)>
<!ELEMENT TD (#PCDATA)>
<!ELEMENT SequenceStrands (SequenceStrand+)>
<!ELEMENT SequenceStrand (#PCDATA)>
