The structure and nomenclature of vitamin C and B-12 are available. See:
http://www.chem.qmw.ac.uk/iupac/2carb/21.html#212 (last example is
ascorbic acid which is vitamin C)
http://www.chem.qmw.ac.uk/iupac/misc/B12.html#p6 (vitamin B-12)
Gerry Moss
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Dr GP Moss Telephone: +44 171 775 3262
Department of Chemistry
Queen Mary & Westfield College Facsimile: +44 181 981 8745
Mile End Road
London E1 4NS, United Kingdom E-mail: [log in to unmask]
World Wide Web server: http://www.chem.qmw.ac.uk/
IUPAC chemical nomenclature data base: http://www.chem.qmw.ac.uk/iupac/
IUBMB biochemical nomenclature data base: http://www.chem.qmw.ac.uk/iubmb/
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