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5,7-Dihydroxy-4-methylcoumarin Suppliers list
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Email: [email protected]
Products Intro: Product Name:5,7-Dihydroxy-4-methylcoumarin
CAS:2107-76-8
Company Name: Shanghai Zheyan Biotech Co., Ltd.
Tel: 18017610038
Email: [email protected]
Products Intro: Product Name:5,7-Dihydroxy-4-methylcoumarin
CAS:2107-76-8
Purity:HPLC>=98% Package:20mg
Company Name: career henan chemical co
Tel: +86-371-86658258
Email: [email protected]
Products Intro: Product Name:5,7-Dihydroxy-4-methylcoumarin
CAS:2107-76-8
Purity:99% Package:1kg;1USD
Company Name: Chengdu Biopurify Phytochemicals Ltd.
Tel: 18080483897
Email: [email protected]
Products Intro: Product Name:5,7-Dihydroxy-4-methylcoumarin
CAS:2107-76-8
Purity:98% HPLC Package:20mg;100mg;500mg;1g Remarks:BP3033
Company Name: Chemwill Asia Co.,Ltd.
Tel: 86-21-51086038
Email: [email protected];[email protected];[email protected];[email protected]
Products Intro: CAS:2107-76-8
Purity:99% Package:5KG;1KG;25KG

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5,7-Dihydroxy-4-methylcoumarin Basic information
Product Name:5,7-Dihydroxy-4-methylcoumarin
Synonyms:JRH-05201, 5,7-Dihydroxy-4-methyl-2H-chromen-2-one, 97%;DIHYDROXY-4-METHYLCOUMARIN, 5,7-;4-METHYL-5,7-DIHYDROXYCOUMARIN;5,7-DIHYDROXY-4-METHYL-2H-CHROMEN-2-ONE;5,7-DIHYDROXY-4-METHYLCOUMARIN;5,7-dihydroxy-4-methyl-2h-1-benzopyran-2-on;4-METHYL-5,7-DIHYDROXYCOUMARIN 97%;5,7-Dihydroxy-4-methylchromen-2-one
CAS:2107-76-8
MF:C10H8O4
MW:192.17
EINECS:218-289-9
Product Categories:-;Coumarins;Building Blocks;Heterocyclic Building Blocks;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks
Mol File:2107-76-8.mol
5,7-Dihydroxy-4-methylcoumarin Structure
5,7-Dihydroxy-4-methylcoumarin Chemical Properties
Melting point 296-299 °C(lit.)
Sensitive Light Sensitive
λmax322nm(MeOH)(lit.)
BRN 179133
InChIKeyQNVWGEJMXOQQPM-UHFFFAOYSA-N
CAS DataBase Reference2107-76-8(CAS DataBase Reference)
EPA Substance Registry System2H-1-Benzopyran- 2-one, 5,7-dihydroxy-4-methyl-(2107-76-8)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
WGK Germany 3
TSCA Yes
HazardClass IRRITANT
HS Code 29321900
Hazardous Substances Data2107-76-8(Hazardous Substances Data)
MSDS Information
ProviderLanguage
5,7-Dihydroxy-4-methylchromen-2-one English
SigmaAldrich English
ALFA English
5,7-Dihydroxy-4-methylcoumarin Usage And Synthesis
Chemical PropertiesWhite metallic powder
General DescriptionYellow powder. Fluoresces blue. Absorbs ultraviolet light.
Air & Water ReactionsSlightly water soluble .
Reactivity Profile5,7-Dihydroxy-4-methylcoumarin is a phenol and lactone. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid. Lactones react similarly to esters. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.
Fire HazardFlash point data for 5,7-Dihydroxy-4-methylcoumarin are not available. 5,7-Dihydroxy-4-methylcoumarin is probably combustible.
5,7-Dihydroxy-4-methylcoumarin Preparation Products And Raw materials
Raw materialsEtanol-->Sulfuric acid -->Ethyl acetoacetate-->Phloroglucinol
Tag:5,7-Dihydroxy-4-methylcoumarin(2107-76-8) Related Product Information
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