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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.)

functional group

ester
ketone

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

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Certificados de análisis (COA)

Lot/Batch Number
BCCL7790
BCCD6047
BCCC7831
BCBF0386V
BCBC9656V

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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

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
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
Yumei Zhang et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 29(6), 918-924 (2012-03-08)
A high-performance liquid chromatography (HPLC) method was developed to determine dehydroacetic acid (DHA) residues in chicken muscle, liver and kidney. DHA was extracted using acetonitrile, and clean-up performed using a strong anion exchange (PAX) SPE column. The cleaned-up samples were
Hiroko Kishi et al.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 48(3), 58-63 (2007-07-31)
A simple and rapid HPLC method was developed for the simultaneous determination of nine kinds of preservatives, benzoic acid (BA), sorbic acid (SOA), dehydroacetic acid (DHA), methyl p-hydroxybenzoate (PHBA-Me), ethyl p-hydroxybenzoate (PHBA-Et), isopropyl p-hydroxybenzoate (PHBA-isoPu), propyl p-hydroxybenzoate (PHBA-Pu), isobutyl p-hydroxybenzoate
Joerg Gruenwald et al.
Advances in therapy, 21(3), 197-201 (2004-10-29)
This 12-week drug-monitoring study was conducted to evaluate the efficacy of Sanhelios Mussel Lyprinol Lipid Complex on 50 adult men and women with inflammatory rheumatoid arthritis. A total of 34 patients required drug therapy before and during the study. By
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