MilliporeSigma
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46935-U

Supelco

Isobutyric acid

analytical standard

Synonym(s):
2-Methylpropionic acid
Linear Formula:
(CH3)2CHCO2H
CAS Number:
Molecular Weight:
88.11
Beilstein:
635770
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

Quality Level

grade

analytical standard

vapor density

3.04 (vs air)

vapor pressure

1.5 mmHg ( 20 °C)

CofA

current certificate can be downloaded

autoignition temp.

824 °F

expl. lim.

10 %

packaging

ampule of 500 mg

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.393 (lit.)

bp

153-154 °C (lit.)

mp

−47 °C (lit.)

density

0.95 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

format

neat

storage temp.

2-30°C

SMILES string

CC(C)C(O)=O

InChI

1S/C4H8O2/c1-3(2)4(5)6/h3H,1-2H3,(H,5,6)

InChI key

KQNPFQTWMSNSAP-UHFFFAOYSA-N

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Application

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

131.0 °F - closed cup

Flash Point(C)

55 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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

Protocols

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.

GC Analysis of Fermentation Compounds on a Packed Column (6.6% Carbowax® 20M on 80/120 Carbopack™ B AW)

Separation of Acetone; Acetic acid; Propionic acid; Ethyl butyrate; Ethanol; Isoamyl acetate; Isobutyric acid; 3-Methyl-2-butanol; Methyl acetate; 1-Propanol; Acetal, ≥98%, FG; 2-Methyl-1-pentanol; Butyl acetate; Ethyl propionate; 3-Pentanol; 2-Pentanol, 98%; Ethyl isobutyrate; Isobutyl acetate; Acetaldehyde; Furfural; Butyric acid; Methanol; Ethyl acetate

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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