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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:
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

agency

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

Organoléptico

butter; acidic; rancid

application(s)

flavors and fragrances

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.

Palavra indicadora

Danger

Classificações de perigo

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

Código de classe de armazenamento

3 - Flammable liquids

WGK

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

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)
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)
A Vyalikh et al.
Physical chemistry chemical physics : PCCP, 9(18), 2249-2257 (2007-05-10)
Solid state deuterium NMR has been used to study the molecular motion of d(6)-isobutyric acid (d(6)-iBA) in the pure (unconfined) state and confined in the cylindrical pores of two periodic mesoporous silica materials (MCM-41, pore size 3.3 nm and SBA-15
Kimberlee S Mix et al.
Molecular pharmacology, 65(2), 309-318 (2004-01-27)
Matrix metalloproteinases (MMPs) degrade extracellular matrix components, and overexpression of these enzymes contributes to tissue destruction in arthritis. Of particular importance are the collagenases, MMP-1 and MMP-13, which have high activity against the interstitial collagens in cartilage. In this study

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