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240370

Sigma-Aldrich

Valeric acid

≥99%

Synonyme(s) :

n-Valeric acid, Pentanoic acid

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About This Item

Formule linéaire :
CH3(CH2)3COOH
Numéro CAS:
109-52-4
Poids moléculaire :
102.13
Numéro Beilstein :
969454
Numéro CE :
203-677-2
Numéro MDL:
MFCD00004413
Code UNSPSC :
12352100
ID de substance PubChem :
24854415
Nomenclature NACRES :
NA.22

Densité de vapeur

3.5 (vs air)

Niveau de qualité

200

Pression de vapeur

0.15 mmHg ( 20 °C)

Pureté

≥99%

Forme

liquid

Température d'inflammation spontanée

707 °F

Limite d'explosivité

7.6 %

Indice de réfraction

n20/D 1.408 (lit.)

Point d'ébullition

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

Pf

−20-−18 °C (lit.)

Densité

0.939 g/mL at 25 °C (lit.)

Groupe fonctionnel

carboxylic acid

Chaîne SMILES 

CCCCC(O)=O

InChI

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

Clé InChI

NQPDZGIKBAWPEJ-UHFFFAOYSA-N

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Catégories apparentées

Description générale

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.

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314,H412

Classification des risques

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

Code de la classe de stockage

8A - Combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

192.2 °F - closed cup

Point d'éclair (°C)

89 °C - closed cup

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificats d'analyse (COA)

Lot/Batch Number
SHBN7842
SHBN3643
SHBM6124
STBJ5208
U8960

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Heptanoic acid ≥99.0% (GC)

Sigma-Aldrich

75190

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Octanoic acid ≥99%

Sigma-Aldrich

C2875

Octanoic acid

2-Methylvaleric acid 98%

Sigma-Aldrich

109878

2-Methylvaleric acid

Acide propionique ≥99.5%

Sigma-Aldrich

P1386

Acide propionique

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
Afficher tous les articles scientifiques apparentés

Articles

GC Analysis of C2-C7 Free Fatty Acids on Nukol™

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

GC Analysis of C2-C22 Free Fatty Acids on Nukol™

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

Probiotics and Human Health

probiotics-and-human

Protocoles

GC Analysis of Free Fatty Acids in Parmesan Cheese using Nukol™ after SPME using 65 μm Carbowax/DVB Fiber

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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