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Merck
모든 사진(1)

주요 문서

78651

Supelco

Isovaleric acid

analytical standard

동의어(들):

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 코드:
85151701
PubChem Substance ID:
NACRES:
NA.24

Grade

analytical standard

Quality Level

vapor pressure

0.38 mmHg ( 20 °C)

분석

≥98.5% (GC)

autoignition temp.

824 °F

유통기한

limited shelf life, expiry date on the label

기술

HPLC: suitable
gas chromatography (GC): suitable

불순물

≤0.3% water

refractive index

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

bp

175-177 °C (lit.)

mp

−29 °C (lit.)

density

0.925 g/mL at 20 °C (lit.)

응용 분야

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

형식

neat

SMILES string

CC(C)CC(O)=O

InChI

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

InChI key

GWYFCOCPABKNJV-UHFFFAOYSA-N

유사한 제품을 찾으십니까? 방문 제품 비교 안내

애플리케이션

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).
  • Sicilian goat cheese using gas chromatography with flame ionization detection (GC-FID) and mass spectrometry (GC-MS).
  • Food products using gas chromatography with flame ionization detection (GC-FID).

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

픽토그램

Corrosion

신호어

Danger

유해 및 위험 성명서

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


가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Determination of acids in Brazilian sugar cane spirits and other alcoholic beverages by HRGC-SPE
Nascimento DFR, et al.
Chromatographia, 48(11-12), 751-757 (1998)
Giuditta Pagliai et al.
European journal of nutrition, 59(5), 2011-2024 (2019-07-12)
We evaluated the effect of low-calorie mediterranean (MD) and vegetarian (VD) diets on gut microbiome (GM) composition and short-chain-fatty acids (SCFA) production. We performed next generation sequencing (NGS) of 16S rRNA and SCFA analysis on fecal samples of 23 overweight
Elena Niccolai et al.
World journal of gastroenterology, 25(36), 5543-5558 (2019-10-03)
An altered (dysbiosis) and unhealthy status of the gut microbiota is usually responsible for a reduction of short chain fatty acids (SCFAs) concentration. SCFAs obtained from the carbohydrate fermentation processes are crucial in maintaining gut homeostasis and their determination in
Study of the aroma compounds of rose apple (Syzygium jambos Alston) fruit from Brazil
Guedes MC, et al.
European Food Research and Technology, 219(5), 460-464 (2004)
Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid
Hammer RT, et al.
Flavour and Fragrance Journal, 28(4), 238-244 (2013)

문서

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

프로토콜

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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