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Documentos

30740

Sigma-Aldrich

Dehydroacetic acid

≥98.0% (T)

Sinónimos:

2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid δ-lactone

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About This Item

Fórmula empírica (notación de Hill):
C8H8O4
Número de CAS:
520-45-6
Peso molecular:
168.15
Beilstein/REAXYS Number:
6129
EC Number:
208-293-9
MDL number:
MFCD00066709
UNSPSC Code:
12352100
PubChem Substance ID:
57648475
NACRES:
NA.22

Quality Level

100

assay

≥98.0% (T)

form

powder

bp

270 °C (lit.)

mp

111-113 °C (lit.)

SMILES string

CC(=O)C1C(=O)OC(C)=CC1=O

InChI

1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3

InChI key

PGRHXDWITVMQBC-UHFFFAOYSA-N

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General description

Dehydroacetic acid is one of the food additives found in red wine and was determined by ultra-fast liquid chromatography-tandem quadrupole mass spectrometry (UFLC-MS/MS).

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

314.6 °F

flash_point_c

157 °C

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Certificados de análisis (COA)

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Benzoic acid ACS reagent, ≥99.5%

Sigma-Aldrich

242381

Benzoic acid

Butyl 4-hydroxybenzoate ≥99.0% (GC)

Sigma-Aldrich

54680

Butyl 4-hydroxybenzoate

Ácido linoleico technical, 58-74% (GC)

Sigma-Aldrich

62240

Ácido linoleico

Ségolène De Vaugelade et al.
Rapid communications in mass spectrometry : RCM, 32(11), 862-870 (2018-03-10)
The present work is devoted to the structural elucidation of by-products issued from the direct ultraviolet-visible (UV-vis) irradiation of dehydroacetic acid (DHA) in solution and in cosmetic emulsion. Analyses were carried out using gas chromatography coupled with ion trap mass
Xiao-Hong Chen et al.
Journal of chromatography. A, 1263, 34-42 (2012-10-10)
A novel and effective dispersive solid-phase extraction (dSPE) procedure with rapid magnetic separation using ethylenediamine-functionalized magnetic polymer as an adsorbent was developed. The new procedure had excellent clean-up ability for the selective removal of the matrix in red wine. An
C S Mantzoros et al.
American journal of hypertension, 8(6), 606-614 (1995-06-01)
To test the hypothesis that androgens may play a role in the pathogenesis of atherosclerosis and hypertension, we investigated the association of delta 5 dehydroepiandrosterone sulfate [DHEAS]) and delta 4 (free testosterone [FT]) androgens with the resting, seated blood pressure
Yuka Sakaguchi et al.
Journal of applied toxicology : JAT, 28(4), 524-529 (2007-10-18)
Sodium dehydroacetate (DHA-S) is used as a food additive, preservative and antimicrobial agent. Repeated oral administration of DHA-S in rats induced severe hemorrhage in multiple organs and prolongation of blood coagulation factors. To determine the mechanism of hemorrhage, the protective
Luiz C Dias et al.
Journal of agricultural and food chemistry, 57(4), 1399-1405 (2009-01-28)
A short and efficient approach to a range of new chiral and achiral functionalized (E)-enaminopyran-2,4-diones starting with commercially available dehydroacetic acid is described. The phytotoxic properties of these (E)-enaminopyran-2,4-diones were evaluated by their ability to interfere with the growth of
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