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Key Documents

240370

Sigma-Aldrich

Valeric acid

≥99%

Synonym(s):

n-Valeric acid, Pentanoic acid

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About This Item

Linear Formula:
CH3(CH2)3COOH
CAS Number:
Molecular Weight:
102.13
Beilstein:
969454
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor density

3.5 (vs air)

vapor pressure

0.15 mmHg ( 20 °C)

Assay

≥99%

form

liquid

autoignition temp.

707 °F

expl. lim.

7.6 %

refractive index

n20/D 1.408 (lit.)

bp

110-111 °C/10 mmHg (lit.)
185 °C (lit.)

mp

−20-−18 °C (lit.)

density

0.939 g/mL at 25 °C (lit.)

SMILES string

CCCCC(O)=O

InChI

1S/C5H10O2/c1-2-3-4-5(6)7/h2-4H2,1H3,(H,6,7)

InChI key

NQPDZGIKBAWPEJ-UHFFFAOYSA-N

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General description

Valeric acid (VA) also known as pentanoic acid, is a short-chain fatty acid used to synthesize valeric biofuels.

Application

Sex attractant of the sugar beet wireworm, Limonius californicus.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

192.2 °F - closed cup

Flash Point(C)

89 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Chun-Chieh Lin et al.
eLife, 4 (2015-10-01)
Animals use olfactory cues for navigating complex environments. Food odors in particular provide crucial information regarding potential foraging sites. Many behaviors occur at food sites, yet how food odors regulate such behaviors at these sites is unclear. Using Drosophila melanogaster
D M Saunders et al.
The Australian & New Zealand journal of obstetrics & gynaecology, 18(3), 198-201 (1978-08-01)
The effect of oestradiol valerate on levels of blood cholesterol, triglycerides, free oestradiol and coagulation factors, as well as on urinary oestrogens and free cortisol was measured in 10 oöphorectomised women. Despite the very high urinary oestrogen levles obtained, there
M F Böttcher et al.
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 30(11), 1590-1596 (2000-11-09)
The prevalence of allergic diseases has increased particularly over the past 30-40 years. A reduced microbial stimulation during infancy may result in a development of a disturbed balance between Th1- and Th2-like immunity. The gut flora is, quantitatively, the most
Martin Koller et al.
Macromolecular bioscience, 7(2), 218-226 (2007-02-14)
Three different microbial wild-type strains are compared with respect to their potential as industrial scale polyhydroxyalkanoate (PHA) producers from the feed stock whey lactose. The halophilic archaeon Haloferax mediterranei as well as two eubacterial strains (Pseudomonas hydrogenovora and Hydrogenophaga pseudoflava)
O Siddiqui et al.
Journal of pharmacokinetics and biopharmaceutics, 17(4), 405-424 (1989-08-01)
The permeation of triamcinolone, hydrocortisone, prednisolone, corticosterone, triamcinolone acetonide, testosterone, and betamethasone-17-valerate through excised human stratum corneum was quantified. The time course of permeation could be adequately described by a simple diffusion model suggesting that shunt transport may not be

Articles

Separation of Propionic acid; Acetic acid; Heptanoic acid; Isobutyric acid; Valeric acid; Isocaproic acid; Butyric acid; Isovaleric acid

Separation of Methyl oleate; Caprylic acid; Heptanoic acid; Methyl decanoate; Methyl dodecanoate; Myristic acid; Methyl palmitate; Methyl palmitoleate; Methyl stearate; Methyl linoleate; Methyl linolenate; Acetic acid; Arachidic acid; Behenic acid; Propionic acid; Isobutyric acid; Valeric acid; Isovaleric acid; Isocaproic acid; Butyric acid

Today, diverse studies report the benefits of probiotics, such as inhibitory effects on pathogens, aid in the management or prevention of chronic intestinal inflammatory diseases or atopic syndromes, and support to the immune system. Potential beneficial applications abound, researchers continue to evaluate the effictiveness and clarify the mechanisms of action of probiotics.

Protocols

In this study, SPME was used for the analysis of free fatty acids in Parmesan cheese using a 65 μm Carbowax/divinylbenzene (DVB) SPME fiber. Headspace extraction of the cheese sample was conducted at 65 °C for 15 minutes and analyzed by GC with FID detection. SPME is ideal for analyzing the volatiles associated with solid food samples. The phase chemistry of the Nukol GC column provides excellent peak shape of acidic compounds.

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