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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:
Molecular Weight:
286.37
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

form

solid

mp

144-145 °C (lit.)

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).

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

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

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