ChemicalBook > CAS DataBase List > 4'-Bromoacetophenone

4'-Bromoacetophenone

Product Name
4'-Bromoacetophenone
CAS No.
99-90-1
Chemical Name
4'-Bromoacetophenone
Synonyms
2-BROMO-1-(4-BROMOPHENYL)ETHAN-1-ONE;PBPB;1-(4-Bromophenyl)ethanone;p-Bromoacetophenone;P-BROMOPHENACYL BROMIDE;para-BROMOACETOPHENONE;p-BROMOACETOPHENONE pure;4-BroMobenz;ROMOACETOPHENONE;AKOS BBS-00000865
CBNumber
CB2204949
Molecular Formula
C8H7BrO
Formula Weight
199.04
MOL File
99-90-1.mol
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4'-Bromoacetophenone Property

Melting point:
108-110 °C(lit.)
Boiling point:
255 °C(lit.)
Density 
1.64
refractive index 
1.5540 (estimate)
Flash point:
>230 °F
storage temp. 
Store below +30°C.
solubility 
methanol: 0.1 g/mL, clear
form 
Crystals or Crystalline Flakes
color 
White to light yellow
Water Solubility 
Soluble in Chloroform. Insoluble in water.
Merck 
14,1403
BRN 
386015
InChIKey
WYECURVXVYPVAT-UHFFFAOYSA-N
CAS DataBase Reference
99-90-1(CAS DataBase Reference)
NIST Chemistry Reference
Ethanone, 1-(4-bromophenyl)-(99-90-1)
EPA Substance Registry System
Ethanone, 1-(4-bromophenyl)- (99-90-1)
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Safety

Hazard Codes 
C,Xi,Xn
Risk Statements 
34-36/38-42/43-36/37/38-22
Safety Statements 
26-36/37/39-45-22-36/37
RIDADR 
UN 3261 8/PG 2
WGK Germany 
2
RTECS 
AM6950000
19-21
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29147090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
B56404
Product name
4′-Bromoacetophenone
Purity
98%
Packaging
25g
Price
$32.3
Updated
2024/03/01
Sigma-Aldrich
Product number
B56404
Product name
4′-Bromoacetophenone
Purity
98%
Packaging
100g
Price
$80.2
Updated
2024/03/01
Sigma-Aldrich
Product number
8.21968
Product name
4′-Bromoacetophenone
Purity
for synthesis
Packaging
25G
Price
$43.2
Updated
2024/03/01
Sigma-Aldrich
Product number
8.21968
Product name
4′-Bromoacetophenone
Purity
for synthesis
Packaging
100G
Price
$96.4
Updated
2024/03/01
TCI Chemical
Product number
B0537
Product name
4'-Bromoacetophenone
Purity
>98.0%(GC)
Packaging
25g
Price
$33
Updated
2024/03/01
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4'-Bromoacetophenone Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystals. soluble in alcohol, ether, glacial acetic acid, benzene, carbon disulfide and petroleum ether, insoluble in water. Easy to volatilize with water vapor.

Uses

4'-Bromoacetophenone is an important organic synthesis intermediate, widely used in synthetic medicine, pesticides, dyes, flavors and fragrances, perfumes, Intermediates of Liquid Crystals etc.

Uses

Labeled 4?-Bromoacetophenone possess activity against positive phototaxis of Chlamydomonas cells. A fundamental starting material for organic synthesis.

Preparation

4'-Bromoacetophenone is synthesized by the reaction of bromobenzene and acetic anhydride in the presence of aluminum trichloride.
Add bromobenzene and dry carbon disulfide into the reactor, put in powdered anhydrous aluminum trichloride, heat until it starts to reflux, stop heating, add acetic anhydride dropwise, and then reflux for 1 hour after adding, steam out carbon disulfide, and put it while it is still hot. The reactant was poured into the hydrochloric acid ice-water mixture, filtered to dryness, and distilled under reduced pressure to obtain p-bromoacetophenone.

Synthesis Reference(s)

The Journal of Organic Chemistry, 51, p. 5400, 1986 DOI: 10.1021/jo00376a064
Tetrahedron Letters, 26, p. 4657, 1985 DOI: 10.1016/S0040-4039(00)98778-1

Purification Methods

Crystallise it from EtOH, MeOH or from pet ether (b 80-100o). [Tanner J Org Chem 52 2142 1987, Beilstein 7 IV 647.]

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View Lastest Price from 4'-Bromoacetophenone manufacturers

Henan Fengda Chemical Co., Ltd
Product
p-Bromoacetophenones 99-90-1
Price
US $8.00-0.80/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-01-22
Hebei Yanxi Chemical Co., Ltd.
Product
4'-Bromoacetophenone 99-90-1
Price
US $0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-11-27
Hebei Guanlang Biotechnology Co., Ltd.
Product
4'-Bromoacetophenone 99-90-1
Price
US $30.00-10.00/KG
Min. Order
50KG
Purity
99%
Supply Ability
500000kg
Release date
2022-09-19

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