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229067

Sigma-Aldrich

Dicinnamalacetone

98%

Synonym(s):

1,9-Diphenyl-1,3,6,8-nonatetraen-5-one

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About This Item

Linear Formula:
(C6H5CH=CHCH=CH)2CO
CAS Number:
622-21-9
Molecular Weight:
286.37
EC Number:
210-724-0
MDL number:
MFCD00004792
UNSPSC Code:
12352100
PubChem Substance ID:
24853725
NACRES:
NA.22

assay

98%

form

solid

mp

144-145 °C (lit.)

functional group

ketone
phenyl

SMILES string

O=C(\C=C\C=C\c1ccccc1)/C=C/C=C/c2ccccc2

InChI

1S/C21H18O/c22-21(17-9-7-15-19-11-3-1-4-12-19)18-10-8-16-20-13-5-2-6-14-20/h1-18H/b15-7+,16-8+,17-9+,18-10+

Inchi Key

RLJALOQFYHCJKG-FVRNMFRHSA-N

Application

Dicinnamalacetone was used as an indicator in measuring the surface acidity of homoionic montmorillonites by titrating certain Hammett indicators adsorbed on the clay with n-butylamine. It was also used as an indicator (yellow to bright red) for detection of excess hydrogen halides in many organic solvents (except alcohols).

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKBH7663V
13115BI
10117CF
02708DY

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Surface acidity of montmorillonites.
Frenkel M.
Clays and Clay Minerals, 22(5-6), 435-441 (1974)

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