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Piperonyl acetone

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Piperonyl acetone Basic information

Product Name:
Piperonyl acetone
Synonyms:
  • PIPERONYLACETONE
  • 2-Butanone, 4-(1,3-benzodioxol-5-yl)-
  • 4-(2H-1,3-benzodioxol-5-yl)butan-2-one
  • 4-(1,3-benzodioxol-5-yl)-2-butanon
  • DULCINYL
  • FEMA 2701
  • HELIOTROPYL ACETONE
  • 3,4-METHYLENEDIOXYBENZYL ACETONE
CAS:
55418-52-5
MF:
C11H12O3
MW:
192.21
EINECS:
259-630-1
Product Categories:
  • Aromatic Ketones (substituted)
Mol File:
55418-52-5.mol
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Piperonyl acetone Chemical Properties

Melting point:
49-54 °C(lit.)
Boiling point:
176 °C17 mm Hg(lit.)
Density 
1.175±0.06 g/cm3(Predicted)
FEMA 
2701 | 4-(3,4-METHYLENEDIOXYPHENYL)-2-BUTANONE
refractive index 
1.52-1.522
Flash point:
>230 °F
storage temp. 
4°C
solubility 
Chloroform (Slightly), DMSO (Slightly)
form 
Solid
color 
Colourless crystals.
Odor
at 10.00 % in dipropylene glycol. sweet raspberry heliotrope powdery cotton candy
Odor Type
floral
JECFA Number
2048
BRN 
169843
InChIKey
TZJLGGWGVLADDN-UHFFFAOYSA-N
LogP
1.53
CAS DataBase Reference
55418-52-5(CAS DataBase Reference)
NIST Chemistry Reference
4-(3,4-Methylenedioxyphenyl)-2-butanone(55418-52-5)
EPA Substance Registry System
2-Butanone, 4-(1,3-benzodioxol-5-yl)- (55418-52-5)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
2
TSCA 
Yes
HS Code 
2914.19.0000
Toxicity
The acute oral LD50 value in rats was reported as 4Og/kg and the acute dermal LD50 value in rabbits exceeded 5 g/kg (Wohl, 1974).

MSDS

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Piperonyl acetone Usage And Synthesis

Aroma

Intensely sweet, floral and very slightly woody-powdery odor reminiscent of the sweetfloral notes in Mimosa and Cassie. Also remotely reminiscent of Heliotrope.
The taste in dilutions below 50 ppm is sweet, somewhat fruity and "Cherry-pit"-like. Higher concentrations tend to show a somewhat bitter taste.

Uses in Perfume

For several decades well kept as a "secret" chemical this ketone is one of the most interest ing and successful condensation products from a perfumery point of view. Piperonyl acetone finds application in Lilac, Lily, Sweet Pea, Appleblossom, Mimosa, Cassie, Ylang-Ylang, Heliotrope, Carnation, etc. and is particularly interesting in lipstick perfumes, also because it blends well with lonones.
Piperonyl acetone finds use in flavor compositions for imitation Cherry ("pit flavor") in various fruit complexes. Occasionally as a modifier in Vanilla imitation. The concentration is about 8 to 45 ppm in finished products. The highest figures are usually in icecream, about 50 ppm.

Description

4-(3,4-Methylenedioxyphenyl)-2-butanone has an intensely sweet, floral, slightly woody odor. May be prepared by condensation of heliotropin with acetone, followed by hydrogenation in the presence of a palladium catalyst.

Chemical Properties

4-(3,4-Methylenedioxyphenyl)-2-butanone has an intensely sweet, floral, slightly woody odor reminiscent of raspberry, cotton candy (i.e., candy floss) with a cassie, heliotrope association.

Occurrence

Has apparently not been reported to occur in nature.

Definition

ChEBI: 4-(3,4-Methylenedioxyphenyl)-2-butanone is a member of benzodioxoles.

Preparation

By condensation of heliotropin with acetone, followed by hydrogenation in the presence of a palladium catalyst

Taste threshold values

Taste characteristics at 40 ppm: sweet, berry-like with spicy, jamy nuances

Metabolism

The oxygen-aromatic carbon link of aromatic ethers is generally biologically stable, and possible metabolites include the p-hydroxy derivative of the ether, the phenol or the p-hydroxyphenol (Williams, 1959). Ketones are not readily metabolized in the body. As a derivative of 2-butanone, piperonyl acetone might be expected to be partially reduced to the secondary alcohol and excreted as the glucuronide (Williams, 1959), since Saneyoshi (1911) isolated the glucuronide of 2-butanol from the urine of rabbits receiving methyl ethyl ketone.

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