 Idealisedskeletal formula | |
 Ball-and-stick model based on thecrystal structure.[1][2] Note that the acidicphenol group has donated a proton to the basicpyridine group to form azwitterion, and thehydroxymethyl group has reacted with thealdehyde group to form ahemiacetal. | |
| Names | |
|---|---|
| Preferred IUPAC name 3-Hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-carbaldehyde | |
| Identifiers | |
3D model (JSmol) | |
| ChEBI | |
| ChEMBL | |
| ChemSpider |
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| DrugBank |
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| ECHA InfoCard | 100.000.573 |
| KEGG |
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| UNII |
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| Properties | |
| C8H9NO3 | |
| Molar mass | 167.16 g/mol |
| Melting point | 165 °C (329 °F; 438 K) (decomposes) |
| Related compounds | |
Related arylformaldehydes | Damnacanthal |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Pyridoxal (PL)[3] is one form ofvitamin B6.
Some medically relevant bacteria, such as those in the generaGranulicatella andAbiotrophia, require pyridoxal for growth. This nutritional requirement can lead to the culture phenomenon of satellite growth. Inin 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 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 theGreat Oxidation Event.[4]
