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Merck

30740

Dehydroacetic acid

≥98.0% (T)

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C8H8O4
CAS Number:
Molecular Weight:
168.15
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
208-293-9
Beilstein/REAXYS Number:
6129
MDL number:
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Product Name

Dehydroacetic acid, ≥98.0% (T)

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

assay

≥98.0% (T)

form

powder

bp

270 °C (lit.)

mp

111-113 °C (lit.)

functional group

ester
ketone

Quality Level

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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

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

13 - Non Combustible Solids

wgk

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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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
Yansheng Wang et al.
Journal of food science, 75(6), M383-M388 (2010-08-21)
The peptide mixture from housefly pupae has broad spectrum antimicrobial activity but has not previously been reported as a food preservative. In this study, the preservation effects of a housefly pupae peptide mixture, nisin, and sodium dehydroacetate (DHA-S) on the
T Hata et al.
British journal of obstetrics and gynaecology, 105(3), 360-361 (1998-04-09)
We studied the effect of dehydroepiandrosterone sulphate (DHAS) on placental blood flow in 11 women with an uncomplicated pregnancy between 37 and 39 weeks of gestation. Power Doppler enhancement of the placenta was performed before and 60 minutes after the
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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