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Supelco

Isovaleric acid

analytical standard

Synonym(s):

3-Methylbutanoic acid, 3-Methylbutyric acid

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About This Item

Linear Formula:
(CH3)2CHCH2COOH
CAS Number:
Molecular Weight:
102.13
Beilstein:
1098522
EC Number:
MDL number:
UNSPSC Code:
85151701
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

vapor pressure

0.38 mmHg ( 20 °C)

Assay

≥98.5% (GC)

autoignition temp.

824 °F

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

impurities

≤0.3% water

refractive index

n20/D 1.402-1.404
n20/D 1.403 (lit.)

bp

175-177 °C (lit.)

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Application

Isovaleric acid may be used as an analytical reference standard for the quantification of the analyte in the following:
  • Rose apple (Syzygium jambos Alston) fruit using gas chromatography with flame ionization detection (GC-FID), mass spectrometry (GC-MS) and olfactometry/aroma extract dilution analysis (GC-O/AEDA).[1]
  • Sicilian goat cheese using gas chromatography with flame ionization detection (GC-FID) and mass spectrometry (GC-MS).[2]
  • Food products using gas chromatography with flame ionization detection (GC-FID).[3]

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

176.0 °F - Pensky-Martens closed cup

Flash Point(C)

80 °C - Pensky-Martens closed cup


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    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

    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.

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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