W222208

Sigma-Aldrich

Isobutyric acid

≥99%, FCC, FG

Sinônimo(s):
Isobutanoic acid, 2-Methylpropionic acid
Fórmula linear:
(CH3)2CHCO2H
Número CAS:
Peso molecular:
88.11
Número FEMA:
2222
Beilstein/REAXYS Number:
635770
Número EC:
Conselho da Europa nº:
6
Número MDL:
ID de substância PubChem:
Número de Flavis:
8.006
NACRES:
NA.21

Nível de qualidade

400

fonte biológica

synthetic

grau

FG
Kosher

Agência/Método

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 872/2012
FCC
FDA 21 CFR 172.515

densidade de vapor

3.04 (vs air)

pressão de vapor

1.5 mmHg ( 20 °C)

teor

≥99%

temperatura de autoignição

824 °F

Lim. expl.

10 %

índice de refração

n20/D 1.393 (lit.)

pb

153-154 °C (lit.)

pf

−47 °C (lit.)

densidade

0.95 g/mL at 25 °C (lit.)

Documentação

see Safety & Documentation for available documents

Setor em destaque

Flavors and Fragrances

Organoléptico

butter; acidic; rancid

alérgeno alimentar

no known allergens

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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Descrição geral

Isobutyric acid is a volatile fatty acid that can be used as a flavoring agent. It occurs naturally in Ceratonia siliqua L. The gum obtained from the kernels of this species is used as a thickener in the food industry.

Embalagem

1 kg in glass bottle
5, 10, 25 kg in composite drum

Ações bioquímicas/fisiológicas

Odor at 10 ppm
Taste at 15 ppm

Outras notas

Natural occurrence: Roman chamomile, strawberry, dairy products.
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Palavra indicadora

Danger

hazcat

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

storage_class_code

3 - Flammable liquids

WGK Alemanha

WGK 1

Ponto de fulgor (ºF)

131.0 °F - closed cup

Ponto de fulgor (ºC)

55 °C - closed cup

Equipamento de proteção individual

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

Certificado de análise

Certificado de origem

Burdock GA
Encyclopedia of Food and Color Additives, 1, 1463-1464 (1997)
Effect of temperature on isobutyric acid loss during roasting of carob kibble
Berna A, et al
Journal of Agricultural and Food Chemistry, 45(10), 4084-4087 (1997)
Manipulation of colonic bacteria and volatile fatty acid production by dietary high amylose maize (amylomaize) starch granules
Wang X, et al
Journal of Applied Microbiology, 93(3), 390-397 (2002)
Ritu Lal et al.
The Journal of pharmacology and experimental therapeutics, 330(3), 911-921 (2009-06-09)
Baclofen is a racemic GABA(B) receptor agonist that has a number of significant pharmacokinetic limitations, including a narrow window of absorption in the upper small intestine and rapid clearance from the blood. Arbaclofen placarbil is a novel transported prodrug of...
Julia Biermann et al.
Molecular vision, 17, 395-403 (2011-02-12)
Histone deacetylase inhibitors (HDACi) have neuroprotective effects under various neurodegenerative conditions, e.g., after optic nerve crush (ONC). HDACi-mediated protection of central neurons by increased histone acetylation has not previously been demonstrated in rat retinal ganglion cells (RGCs), although epigenetic changes...

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