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3-methylbutanal is a methylbutanal that is butanal substituted by a methyl group at position 3. It occurs as a volatile constituent in olives. It has a role as a flavouring agent, a plant metabolite, a volatile oil component and a Saccharomyces cerevisiae metabolite.

CAS Number #590-86-3
Synonyms 3-Methylbutanal, 3-Methylbutyraldehyde, NSC 404119
Molecular Formula C5H10O or (CH3)2CHCH2CHO

EC Number 209-691-5
MDL Number MFCD00007014
Chemical Name Iso-valeraldehyde
Molecular Weight 86.13
Boiling Point 90 °C - lit
Melting Point < -89.99 °C
Packaging 500 Ml, 1L, 2L & 5L in Glass Bottles, Bigger packaging available on request.
Color Colorless

iso-Valeraldehyde is an oxygenated (aldehyde) volatile organic compounds (VOC), normally found in humans, particularly in the gut. iso-Valeraldehyde is a leucine degradation product that has been found in elevated concentrations in some cases of hepatic encephalopathy, however not significantly. Fermentation of carbohydrates in the gut produces ethanoic, propionic, butanoic, pentanoic, and hexanoic acid acids, particularly by Bacteroides, although it is possible that some of the iso-Valeraldehyde is of dietetic origin. iso-Valeraldehyde has been found to be a normal component of the chemical profile of cheddar cheese, spirits (beer, rum, sake, wine).

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