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ChemicalBook >  Product Catalog >  Flavors and fragrances >  Synthetic fragrances >  Carboxylic acids and esters >  Aliphatic dicarboxylic acid esters >  P-TOLYL ACETATE

P-TOLYL ACETATE

Basic information Aroma Safety Supplier Related

P-TOLYL ACETATE Basic information

Product Name:
P-TOLYL ACETATE
Synonyms:
  • P-ACETOXYTOLUENE
  • P-CRESYL ACETATE
  • P-TOLYL ACETATE
  • 4-Acetoxytoluene
  • Narceol
  • Paracresyl acetate
  • paracresylacetate
  • p-Cresol acetate
CAS:
140-39-6
MF:
C9H10O2
MW:
150.17
EINECS:
205-413-1
Product Categories:
  • Organics
Mol File:
140-39-6.mol
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P-TOLYL ACETATE Chemical Properties

Melting point:
48.5 °C
Boiling point:
210-211 °C(lit.)
Density 
1.047 g/mL at 25 °C(lit.)
vapor pressure 
21.864Pa at 25℃
refractive index 
n20/D 1.501(lit.)
FEMA 
3073 | P-TOLYL ACETATE
Flash point:
194 °F
storage temp. 
Sealed in dry,Room Temperature
solubility 
Insoluble in water
form 
powder to lump to clear liquid
color 
White or Colorless to Almost white or Almost colorless
Specific Gravity
1.052 (20/4℃)
Odor
at 1.00 % in dipropylene glycol. narcissus phenolic animal
Odor Type
floral
Water Solubility 
1.195g/L at 25℃
JECFA Number
699
LogP
2.11 at 25℃
CAS DataBase Reference
140-39-6(CAS DataBase Reference)
NIST Chemistry Reference
Acetic acid, 4-methylphenyl ester(140-39-6)
EPA Substance Registry System
Acetic acid, 4-methylphenyl ester (140-39-6)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
22-36/37/38
Safety Statements 
26-36/37/39
RIDADR 
NA 1993 / PGIII
WGK Germany 
2
RTECS 
AJ7570000
HS Code 
2915.39.3500
Toxicity
The acute oral LD50 in rats was reported as 1.9 (1.12-3.23) g/kg (Denine, 1973). The acute dermal LD50 in rabbits was reported as 2.1 (1.24-3.57) g/kg (Denine, 1973).

MSDS

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P-TOLYL ACETATE Usage And Synthesis

Aroma

P-TOLYL ACETATE has pungent Lily-like odor, penetrating, floral, Narcissus-like in high dilution, Horse-like, urine-like undertones in higher concentration. Pleasant notes are obtained normally at concentrations below 1% in the perfume creation, but the material is still capable of totally ruining a composition when the acetate is applied in combination with certain fragrance notes or single chemicals.
Finds some use in flavor compositions for its intensely floral power, which can support fruity notes, nut-like aromas, etc.
The concentration in the finished product is usually about 0.5 to 10 ppm, but may reach 220 ppm in chewing gums.

Chemical Properties

Colorless liquid, volatile with steam. Poorly soluble in water, miscible with alcohol and oils. soluble in Propylene glycol. Sp.Gr. 1.05. B.P. 212°C.

Chemical Properties

p-Tolyl acetate has a strong, floral odor (narcissus) with a characteristic honey-like flavor

Occurrence

Reported as a constituent of the essential oils of wallflower, cananga and ylang-ylang.

Uses

Perfumery, flavoring.

Uses

p-Tolyl acetate has been used in the total synthesis of (?)-incrustoporin.

Definition

ChEBI: Tolylacetate is a member of phenols and a benzoate ester.

Preparation

By acetylation of p-cresol.

Aroma threshold values

Detection: 25 ppb

Synthesis Reference(s)

The Journal of Organic Chemistry, 43, p. 2417, 1978 DOI: 10.1021/jo00406a025

General Description

The Fries rearrangement of p-tolyl acetate has been investigated using the H-form of various zeolites as catalysts. Mechanism of photo-Fries rearrangement of p-tolyl acetate has been studied.

Flammability and Explosibility

Not classified

Safety Profile

Moderately toxic by ingestion and skin contact. Combustible liquid. When heated to decomposition it emits toxic smoke and irritating fumes.

P-TOLYL ACETATE Preparation Products And Raw materials

Raw materials

P-TOLYL ACETATESupplier

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