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129542

Sigma-Aldrich

Isovaleric acid

99%

Synonyme(s) :

3-Methylbutanoic acid, 3-Methylbutyric acid

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100 ML
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500 ML
56,50 €
1 L
93,60 €

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100 ML
39,00 €
500 ML
56,50 €
1 L
93,60 €

About This Item

Formule linéaire :
(CH3)2CHCH2COOH
Numéro CAS:
503-74-2
Poids moléculaire :
102.13
Beilstein:
1098522
Numéro CE :
207-975-3
Numéro MDL:
MFCD00002726
Code UNSPSC :
12352100
ID de substance PubChem :
24847909
Nomenclature NACRES :
NA.22

39,00 €

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Devis pour commande en gros

Pression de vapeur

0.38 mmHg ( 20 °C)

Niveau de qualité

200

Essai

99%

Forme

liquid

Température d'inflammation spontanée

824 °F

Indice de réfraction

n20/D 1.403 (lit.)

pb

175-177 °C (lit.)

Pf

−29 °C (lit.)

Densité

0.925 g/mL at 20 °C (lit.)

Groupe fonctionnel

carboxylic acid

Chaîne SMILES 

CC(C)CC(O)=O

InChI

1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7)

Clé InChI

GWYFCOCPABKNJV-UHFFFAOYSA-N

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Description générale

Isovaleric acid, also known as 3-methylbutanoic acid, is commonly used for ester synthesis and as a building block in organic reactions.[1] It is a volatile organic compound present in vinegar bait and is determined by solid phase microextraction[2]. Isovaleric acid inhibits the synthesis of saturated fatty acids[3]. It is a favorable carbon source for cell growth[4]. Moreover, it is a promising odor indicator[5].

Application

Isovaleric acid inhibits the synthesis of saturated fatty acids[3].

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314

Classification des risques

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)

176.0 °F - Pensky-Martens closed cup

Point d'éclair (°C)

80 °C - Pensky-Martens 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
STBL1676
SHBQ5244
SHBR0200
SHBQ0510
SHBN6639

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Xiaojin Song et al.
Journal of agricultural and food chemistry, 61(41), 9876-9881 (2013-09-24)
Aurantiochytrium is an important docosahexaenoic acid (DHA) producer containing two kinds of fatty acid synthesis pathways, that is, the fatty acid synthase pathway (FAS) for saturated fatty acid synthesis and the polyketide synthase pathway (PKS) for polyunsaturated fatty acid synthesis.
N Qamaruz-Zaman et al.
Waste management (New York, N.Y.), 32(12), 2426-2430 (2012-07-24)
Research was conducted to determine suitable chemical parameters as indicators of odor from decomposing food wastes. Prepared food scraps were stored in 18 l plastic buckets (2 kg wet weight each) at 20 °C and 8 °C to reproduce high
Biological active esters of the isovaleric acid
Suerbaev, et al.
Eurasian Chemico-Technological Journal, 16, 299-302 (2014)
Lingling Wang et al.
Microbiology spectrum, 9(2), e0124621-e0124621 (2021-10-21)
The adenoviral DNA is prevalent in adenotonsillectomy specimens from pediatric patients, though the virus seems to be in latent state. The tonsils are at the forefront of airway entry point and are the first line of defense against airway viral
Qinxue Wen et al.
Bioresource technology, 143, 695-698 (2013-07-17)
Microalga Chlorella protothecoides can accumulate high proportion of lipids during the heterotrophic growth with glucose as the carbon source. However, its commercial application is restricted due to the high cost of the carbon source. In this study, the wasted activated
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Articles

Probiotics and Human Health

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

Questions

1–2 sur 2 questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 réponse

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 réponse

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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