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Detail of 520-45-6

  • Product Name:Methylacetopyronone
  • CAS No:520-45-6
  • Boiling Point:332.6 ºC at 760 mmHg
  • Melting Point:111-113 ºC
  • Hazard Symbols:
  • Molecular Formula:C8H8O4
  • Molecular Structure:
  • CAS NO:520-45-6 Methylacetopyronone Molecular Structure
  • Synonyms:3-Acetyl-6-methyl-1-oxacyclohex-5-ene-2,4-dione;3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione;3-Acetyl-6-methyldihydropyrandione-2,4;3-Acetyl-6-methylpyran-2,4(3H)-dione;4-Hexenoic acid,2-acetyl-5-hydroxy-3-oxo-, d-lactone;Aceticacid, dehydro-;Biocide 470F;DHAA;DHS;Dehydracetic acid;Dehydroacetic acid;
  • EINECS:208-293-9
  • Molecular Weight:168.15
  • Flash Point:150.6 ºC
  • Risk Codes:R22   
  • Density:1.264 g/cm3
  • Solubility:insoluble

Stability

    Stable. Incompatible with oxidizing agents, bases,reducing agents.

Toxicology

    Harmful if swallowed. May be harmful if inhaled, orabsorbed through the skin. Danger of cumulative effects.
  • Appearance:white powder
  • Safety:Poison by ingestion. Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental tumorigenic data. Combustible when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.

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Methylacetopyronone(520-45-6)

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520-45-6
Kingchem is a well established and respected supplier positioned to meet the needs of the pharmaceutical, nutritional and fine chemical industries. W
Tel:201-261-6002
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Address:5 Pearl Court Allendale Park Allendale, NJ 07401 USA
Supplier:Kingchem Inc.
 United States
520-45-6
In 1846 the entrepreneur Mansuke Nakarai founded his apothecary business for Japanese and Chinese medicines. In 1906 the company started business acti
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Address:Nijo Karasuma, Nakagyo-ku Kyoto 604-0855 Japan
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 Japan
520-45-6
Founded in 2005, Shanghai Weile Chemical Scientific Co., Ltd., is the subsidiary company of Tyger Scientific Inc. Our comp
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Address: 2A-400, 2715 Longwu Road, Shanghai, China
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 China (Mainland)
520-45-6
Founded in 1971 as a fine chemical manufacturer, Spectrum Chemicals & Laboratory Products, a division of Spectrum Chemical Mfg. Corp., has grown into
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Address:United States
Supplier:SPECTRUM-USP
 United States
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 Ukraine
520-45-6
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 Switzerland
520-45-6
MDP ChemControl Ltd. is able to offer range of about 7.000 Fine Chemicals and Intermediates directly from manufacturers, as a result of representing c
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Address:Wolkrova 35 P.O.Box 113 851 01 Bratislava 5 Slovak Republic
Supplier:MDP ChemControl Ltd.
 Slovakia (Slovak Republic)
520-45-6
Quzhou Weirong Pharmaceutical & Chemical Co., Ltd. is a fine chemical manufacturer for animal medicine material and chemicals. We are an Hi-tech compa
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Address:Kecheng Garden Quzhou ,Zhejiang ,China
Supplier:Quzhou Weirong Pharmaceutical & Chemical Co., Ltd.
 China (Mainland)
520-45-6
Established in May 1998. A private joint-stock company. Major business: A real link between users & manufacturers. Maj
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 China (Mainland)
520-45-6
Today, Specs is world's leading provider of compound management and handling services besides being a main supplier of screening compounds and buildin
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Address:Kluyverweg 6
Supplier:SPECS
 Netherlands
520-45-6
Rokem Group, headquatered in Shanghai, People's Republic of China, has three divisions: 1) Rubber Chemicals Production Division: - Qingdao
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Supplier:Rokem
 China (Mainland)
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Shenyang Jin Yi Lai Chemical Co., Ltd. as a Chinese professional specialty chemicals company, provides various kinds of ch
Tel:86-024-62640569
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Address:3 South Changjiang Street, Shenyang, Liaoning Province, China.
Supplier:Shenyang Jin Yi Lai Chemical Co., Ltd.
 China (Mainland)
520-45-6
Weifang Ouchem Trade Co., Ltd. is a professional chemical trading company,which specialises in the Import and Export of Chemicals, Pharmaceutical Raw
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Address:A-19F,HUARUN INTERNATIONAL MANSION,NO.2577,DONGFANG ROAD,WEIFANG,CHINA
Supplier:WEIFANG OUCHEM TRADE CO.LTD
 China (Mainland)
520-45-6
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Supplier:Jiaozhou Fine Chemical Co. Ltd (JFCC
 China (Mainland)
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Our company is a biological high-tech company that primarily engages in research and development, production and marketing various types of natural pl
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 China (Mainland)
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Supplier:WuJiang YingChuang Chemical Co., Ltd.
 China (Mainland)
520-45-6
Taiyuan RHF CO., ltd. provides fine chemicals and advanced intermediates to our global customers. and its services include
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 China (Mainland)
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Orchid Chemical Supplies Ltd is a joint-venture company, which is committed to developing and providing chemicals. our bus
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Supplier:ORCHID CHEMICAL SUPPLIES LTD (OCS)
 China (Mainland)
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Qingdao On-Billion Import and Export Co., Ltd. was established in 2004 with the approval of China Chamber of Commerce. As a comprehensive internationa
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Supplier:Qingdao On-Billion Import and Export Co., Ltd.
 China (Mainland)
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Hangzhou Dayangchem Co.,Ltd dedicated to the development, production and marketing of chemicals which is specialized in Or
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Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China
Supplier:Hangzhou Dayangchem Co., Ltd.
 China (Mainland)

Grade

  • Technical, FCC.

ChemUse

  • Fungicide and bactericide, plasticizer, chemical intermediate, medicated toothpastes.

Derivation

  • (1) By action of N-bromosuccinimide on ketene dimer, (2) by strong heating of acetoacetic ester.

Properties

  • White crystals or crystalline powder. Mp: 109°, bp: 269.0°, vap press: 1 mm @ 91.7°, vap d: 5.8. Moderately sol in water and org solvs.

TOXICITY

  • 1.

    orl-rat LD50:500 mg/kg

    		WRPCA2 World Review of Pest Control. 9 (1970),119.
    2.

    orl-mus LD50:1330 mg/kg

    		SKEZAP Shokuhin Eiseigaku Zasshi. Journal of the Food Hygiene Society of Japan. 12 (1971),520.
    3.

    ipr-mus LD50:922 mg/kg

    		JPETAB Journal of Pharmacology and Experimental Therapeutics. 99 (1950),98.
    4.

    orl-dog LDLo:400 mg/kg

    		HBTXAC Handbook of Toxicology, Volumes I-V. 5 (1959),62.

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