Pyridoxal

Some medically relevant bacteria, such as those in the genera Granulicatella and Abiotrophia, require pyridoxal for growth. This nutritional requirement can lead to the culture phenomenon of satellite growth. In in vitro culture, these pyridoxal-dependent bacteria may only grow in areas surrounding colonies of bacteria from other genera ("satellitism") that are capable of producing pyridoxal.

Pyridoxal

Names
IUPAC name 3-Hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-carbaldehyde
Identifiers
CAS Number	66-72-8 65-22-5 (hydrochloride)
3D model (JSmol)	Interactive image
ChEBI	CHEBI:17310
ChEMBL	ChEMBL102970
ChemSpider	1021
DrugBank	DB00147
ECHA InfoCard	100.000.573
KEGG	C00250
PubChem CID	1050
UNII	3THM379K8A 1416KF0QBC (hydrochloride)
CompTox Dashboard (EPA)	DTXSID4046020
InChI InChI=1S/C8H9NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2,4,10,12H,3H2,1H3 Key: RADKZDMFGJYCBB-UHFFFAOYSA-N InChI=1/C8H9NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2,4,10,12H,3H2,1H3 Key: RADKZDMFGJYCBB-UHFFFAOYAP
SMILES O=Cc1c(O)c(C)ncc1CO
Properties
Chemical formula	C8H9NO3
Molar mass	167.16 g/mol
Melting point	165 °C (329 °F; 438 K) (decomposes)
Related compounds
Related arylformaldehydes	Damnacanthal Gossypol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Pyridoxal is one form of vitamin B₆.

Pyridoxal is involved in what is believed to be the most ancient reaction of aerobic metabolism on Earth, about 2.9 billion years ago, a forerunner of the Great Oxidation Event[1]

See also

• Pyridoxal phosphate

References

1. "Protein Domain Structure Uncovers the Origin of Aerobic Metabolism and the Rise of Planetary Oxygen", Gustavo Caetano-Anolles et al., published in Structure; paper available from University of Illinois News Bureau, 2012.