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W222216

Sigma-Aldrich

Isobutyric acid

natural, ≥99%, FCC, FG

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

Nível de qualidade

400

grau

FG
Kosher
natural

agency

follows IFRA guidelines

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FCC
FDA 21 CFR 117
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

alérgeno de fragrância

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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Categorias relacionadas

Embalagem

100 g in glass bottle
1 kg in glass bottle

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

Nicoletta Beffagna et al.
Journal of experimental botany, 58(15-16), 4183-4194 (2007-11-28)
In Arabidopsis thaliana cells, fusicoccin (FC) treatment induced an early and marked increase in the extracellular H(2)O(2) level. It also increased the huge hypo-osmotic stress-induced oxidative wave and, in addition, prevented the H(2)O(2) peak drop. These effects were apparently not
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
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
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
E M Faed et al.
Clinical and experimental pharmacology & physiology, 5(2), 195-198 (1978-03-01)
1. Two main conjugates of CPIB (2-[chlorophenoxy]-2-methylpropionic acid) are present in the urine of subjects taking clofibrate. The metabolites can be separated by thin-layer chromatography (TLC). 2. Both conjugates are hydrolysed by dilute alkali, but only one is hydrolysed by

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