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4'-Methylacetophenone

4'-Methylacetophenone Structure
CAS No.
122-00-9
Chemical Name:
4'-Methylacetophenone
Synonyms
4-METHYLACETOPHENONE;P-METHYLACETOPHENONE;FEMA 2677;P-ACETYLTOLUENE;4-ACETYLTOLUENE;1-p-tolyl-ethanone;4’-methyl-acetophenon;4-METHYLPHENACYL BROMIDE;1-(4-Methylphenyl)ethanone;Ethanone,1-(4-methylphenyl)-
CBNumber:
CB5852945
Molecular Formula:
C9H10O
Molecular Weight:
134.18
MOL File:
122-00-9.mol
MSDS File:
SDS
Modify Date:
2024/5/30 19:23:35

4'-Methylacetophenone Properties

Melting point 22-24 °C (lit.)
Boiling point 226 °C (lit.)
Density 1.004 g/mL at 20 °C 1.005 g/mL at 25 °C (lit.)
vapor pressure 0.52 hPa (25 °C)
FEMA 2677 | 4'-METHYLACETOPHENONE
refractive index n20/D 1.533(lit.)
Flash point 198 °F
storage temp. Store below +30°C.
solubility 2.07g/l
form Liquid
color Clear colorless to pale yellow
Odor at 10.00 % in dipropylene glycol. hawthorn sweet mimosa coumarin cherry acetophenone
Odor Type floral
explosive limit 1.00%(V)
Water Solubility 0.37 g/L (15 ºC)
JECFA Number 807
BRN 606053
InChIKey GNKZMNRKLCTJAY-UHFFFAOYSA-N
LogP 2.1 at 25℃
CAS DataBase Reference 122-00-9(CAS DataBase Reference)
NIST Chemistry Reference Ethanone, 1-(4-methylphenyl)-(122-00-9)
EPA Substance Registry System Ethanone, 1-(4-methylphenyl)- (122-00-9)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302-H315
Precautionary statements  P264-P270-P280-P301+P312-P302+P352-P332+P313
Hazard Codes  Xn
Risk Statements  36/37/38-22-20/21/22
Safety Statements  26-27-37/39-24/25-23-36
RIDADR  UN 1325 4.1/PG 2
WGK Germany  3
RTECS  AM9463000
TSCA  Yes
HS Code  29143900
Toxicity LD50 orally in Rabbit: 1400 mg/kg LD50 dermal Rabbit > 2000 mg/kg
NFPA 704
1
0 0

4'-Methylacetophenone price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) W267708 4′-Methylacetophenone ≥95%, FCC, FG 122-00-9 1SAMPLE-K ₹5141.88 2022-06-14 Buy
Sigma-Aldrich(India) W267708 4′-Methylacetophenone ≥95%, FCC, FG 122-00-9 1KG ₹8865.68 2022-06-14 Buy
Sigma-Aldrich(India) M26615 4′-Methylacetophenone 95% 122-00-9 100G ₹1948.5 2022-06-14 Buy
Sigma-Aldrich(India) M26615 4′-Methylacetophenone 95% 122-00-9 500G ₹8540.93 2022-06-14 Buy
Sigma-Aldrich(India) 8.21243 4′-Methylacetophenone for synthesis 122-00-9 250ML ₹5930 2022-06-14 Buy
Product number Packaging Price Buy
W267708 1SAMPLE-K ₹5141.88 Buy
W267708 1KG ₹8865.68 Buy
M26615 100G ₹1948.5 Buy
M26615 500G ₹8540.93 Buy
8.21243 250ML ₹5930 Buy

4'-Methylacetophenone Chemical Properties,Uses,Production

Description

4'-Methylacetophenone has a fruity, floral odor resembling acetophenone and a sweet, strawberry-like flavor. May be prepared by slow addition of acetyl chloride to a mixture of toluene and AlCl in an ice bath and under vacuum, maintaining the temperature at +5°C and then letting it increase to +20°C.

Chemical Properties

4'-Methylacetophenone has been identified in Brazilian rosewood oil and in pepper. It occurs as colorless crystals with a floral, sweet odor that is milder than that of acetophenone. 4-Methylacetophenone is prepared from toluene and acetic anhydride or acetyl chloride by a Friedel–Crafts reaction. It is used for blossom notes in mimosaand hawthorn-type perfumes, especially soap perfumes.

Occurrence

Reported found in the essential oil distilled from the wood of Myrocarpus fastigiatus, Myrocarpus frondo sus, Bois de Rose. Also reported found in sour cherry, orange and grapefruit peel oil, black currants, guava, peach, blackberry, celery, potato, tomato, mentha oils, pepper, parsley, smoked fish, cognac, parmesan cheese, cocoa, tea, soybean, cloudberry, mango, cauliflower, broccoli, rice bran, buckwheat, dried bonito, cherimoya, calabash nutmeg and mastic gum leaf oil, cooked cabbage, mandarin juice.

Uses

4'-Methylacetophenone is a methylated acteophenone used in cosmetics and perfumery. The presence of 4'-Methylacetophenone has been shown to accelerate the photopolymerization of Methyl methacrylate.

Preparation

By slow addition of acetyl chloride to a mixture of toluene and AlCl in an ice bath and under vacuum, maintaining the temperature at +5°C and then letting it increase to +20°C.

Definition

ChEBI: 4'-Methylacetophenone is an aromatic ketone. It is a metabolite found in or produced by Saccharomyces cerevisiae.

General Description

4′-Methylacetophenone is a clear colourless to pale yellowish liquid that occurs naturally in mango, tomato and orange.

Safety Profile

Moderately toxic by ingestion. A human skin irritant. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also KETONES.

Purification Methods

Impurities, including the o-and m-isomers, are removed by forming the semicarbazone (m 212-213.5o) which, after repeated crystallisation, is hydrolysed to the ketone. [Brown & Marino J Am Chem Soc 84 1236 1962.] It can also be purified by distillation under reduced pressure, followed by low temperature crystallisation from isopentane. [Beilstein 7 IV 701.]

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