4-Methylbenzophenone

Product Name: 4-Methylbenzophenone
CAS No.: 134-84-9
Chemical Name: 4-Methylbenzophenone
Synonyms: phenyl(p-tolyl)methanone;Methanone, (4-methylphenyl)phenyl-;4-methybenzophenone;APi-MBP;NSC 4898;YF-PI MBP;usafdo-54;USAF DO-54;IHT-PI MBP;HRcure-MBZ
CBNumber: CB4261278
Molecular Formula: C14H12O
Formula Weight: 196.24
MOL File: 134-84-9.mol

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4-Methylbenzophenone Property

Melting point:: 56.5-57 °C (lit.)
Boiling point:: 326 °C (lit.)
Density: 0.9926
vapor pressure: 0.059Pa at 25℃
refractive index: 1.5920 (estimate)
Flash point:: 143 °C
storage temp.: Sealed in dry,Room Temperature
solubility: Chloroform (Slightly), Methanol (Slightly)
form: Crystalline Powder or Crystals
color: White to beige
Odor: faint odor
Water Solubility: Insoluble in water.
Merck: 14,7317
BRN: 1909310
InChIKey: WXPWZZHELZEVPO-UHFFFAOYSA-N
LogP: 3.69 at 25℃
CAS DataBase Reference: 134-84-9(CAS DataBase Reference)
NIST Chemistry Reference: Methanone, (4-methylphenyl)phenyl-(134-84-9)
EPA Substance Registry System: 4-Methylbenzophenone (134-84-9)

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Safety

Hazard Codes: Xi
Risk Statements: 22-36/38-36/37/38
Safety Statements: 24/25-36-26
WGK Germany: 3
RTECS: DJ1750000
Hazard Note: Harmful/Irritant
TSCA: Yes
HS Code: 29143990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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: M29959
Product name: 4-Methylbenzophenone
Purity: 99%
Packaging: 10g
Price: $45.5
Updated: 2024/03/01

Sigma-Aldrich

Product number: 00373
Product name: 4-Methylbenzophenone
Purity: analytical standard
Packaging: 100mg
Price: $95.9
Updated: 2022/05/15

TCI Chemical

Product number: M1248
Product name: 4-Methylbenzophenone
Purity: >95.0%(GC)
Packaging: 25g
Price: $28
Updated: 2024/03/01

TCI Chemical

Product number: M1248
Product name: 4-Methylbenzophenone
Purity: >95.0%(GC)
Packaging: 250g
Price: $165
Updated: 2024/03/01

Alfa Aesar

Product number: A15479
Product name: 4-Methylbenzophenone, 98%
Packaging: 50g
Price: $71.5
Updated: 2024/03/01

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4-Methylbenzophenone Chemical Properties,Usage,Production

Chemical Properties

white to beige crystalline powder or crystals

Uses

4-Methylbenzophenone is used as clear coatings for wood, plastic and metal, overprint varnish.

Uses

4-Methylbenzophenone may be used as a reference standard for the determination of the analyte in breakfast cereals, paperboard food packaging and packed milk by various chromatography techniques.

Uses

Benzophenone estrogenicity toxicity structure activity.

Synthesis Reference(s)

Journal of the American Chemical Society, 82, p. 1223, 1960 DOI: 10.1021/ja01490a047
Tetrahedron Letters, 40, p. 3109, 1999 DOI: 10.1016/S0040-4039(99)00476-1
Synthesis, p. 776, 1977 DOI: 10.1055/s-1977-24573

General Description

4-Methylbenzophenone is a photo-initiator for printing inks, mainly applied to the cardboard boxes used for packing. It is reported to be a non-genotoxic carcinogen. However, it can contaminate foodstuffs when it comes in contact with the package contents.

Flammability and Explosibility

Not classified

Safety Profile

Poison by intraperitoneal route. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Crystallise the ketone from MeOH, Et2O (m 58-59o) or pet ether. The cis-oxime has m 154o(153-156o) (from EtOH), and the trans-oxime has m 114-116o (from pet ether). [Beilstein 7 H 440, 7 III 2127, 7 IV 1403.]

Structure and conformation

4-Methylbenzophenone was one of the first organic compounds for which polymorphism was observed. It crystallizes in two modifications, the stable monoclinic α-form (mp 59°C) and a metastable trigonal β-form (mp 55 ℃). The metastable β-form is rather stable and almost indefinitely preserved if not subjected to severe mechanical load or brought into contact with the stable form. If it converts into a stable form, the crystal becomes milky white and non-transparent due to micro-cracking. There are no conditions under which the β-form is more stable than the α-form. 4-Methylbenzophenone crystallizes in a monoclinic stable form (mp 59 ℃) with a = 5.70 Å, b = 13.89 Å, c = 14.08 Å, p = 95.18° and space group P2_1/c, and a trigonal metastable form (mp 55°C) with a = 9.12 Å, c = 11.28 Å and space groups P3₁, or P3₂[1].

References

[1] H. Kutzke, H. Klapper, M. Al-Mansour. "Stable and metastable crystal phases of 4-methylbenzophenone." Journal of Molecular Structure 374 1 (1995): 129–135.

4-Methylbenzophenone Preparation Products And Raw materials

Raw materials

Preparation Products

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4-Methylbenzophenone Suppliers

Americas 1 Belgium 2 Canada 3 China 434 Europe 3 France 1 Germany 5 India 22 Japan 6 Slovakia 1 South Africa 1 South Korea 2 Switzerland 3 Ukraine 1 United Kingdom 18 United States 46 Global 549

ShangHai Siyan Biological Technology Co., Ltd.

Tel: 021-50908862，442785678，326799392 18721037013
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Zhengzhou HongSheng Pharmaceutical Co., Ltd.

Tel: 1352-6885213 15637198702
Fax: 0371-63709726
Email: xpkchem@163.com
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Suzhou Suosen New Material Technology Co., Ltd.

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Tianjin Zhongxin Chemtech Co., Ltd.

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IGM RESINS

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J & K SCIENTIFIC LTD.

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Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30132
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TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
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Energy Chemical

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View Lastest Price from 4-Methylbenzophenone manufacturers

Jinan Finer Chemical Co., Ltd

Product: 4-Methylbenzophenone 134-84-9
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500mt
Release date: 2023-03-01

hebei hongtan Biotechnology Co., Ltd

Product: 4-Methylbenzophenone 134-84-9
Price: US $30.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 2000kg
Release date: 2024-03-25

Hebei Duling International Trade Co. LTD

Product: 4-Methylbenzophenone 134-84-9
Price: US $60.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 100 tons
Release date: 2023-03-02

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