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Pentanoic acid-d9 is intended for use as an internal standard for the quantification of pentanoic acid by GC- or LC-MS. Pentanoic acid is a short-chain saturated fatty acid. It has been found in the essential oil of V. alliariifolia and in goat milk.1,2 The levels of pentanoic acid are higher in stool samples from patients with colorectal cancer.3

|1. Bardakci, H., Demirci, B., Yesilada, E., et al. Chemical composition of the essential oil of the subterranean parts of valeriana alliariifolia. Rec. Nat. Prod. 6(1), 89-92 (2012).|2. Sant'Ana, A.M.S., Bessa, R.J.B., Alves, S.P., et al. Fatty acid, volatile and sensory profiles of milk and cheese from goats raised on native semiarid pasture or in confinement. Int. Dairy J. 91, 147-154 (2018).|3. Wang, X., Wang, J., Rao, B., et al. Gut flora profiling and fecal metabolite composition of colorectal cancer patients and healthy individuals. Exp. Ther. Med. 13(6), 2848-2854 (2017).

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