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4-Methylumbelliferone

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Company Name: Shenzhen Sendi Biotechnology Co.Ltd.
Tel: 0755-23311925 18102838259
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Products Intro: Product Name:4-Methylumbelliferone
CAS:90-33-5
Purity:99% Package:215/KG
Company Name: Mainchem Co., Ltd.
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Products Intro: Product Name:4-Methylumbelliferone
CAS:90-33-5
Company Name: Xiamen AmoyChem Co., Ltd
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Products Intro: Product Name:Hymecromone
CAS:90-33-5
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Products Intro: CAS:90-33-5
Purity:0.99 Package:5KG;1KG;25KG PRICE quotation Remarks:Factory stock, quality assurance, price concessions
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 86-188-71490254
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Products Intro: Product Name:4-methylumbelliferone
CAS:90-33-5
Purity:99% Package:5KG;1KG Remarks:C10H8O3

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4-Methylumbelliferone Basic information
Product Name:4-Methylumbelliferone
Synonyms:7-hydroxy-4-methyl-2h-1-benzopyren-2-on;7-hydroxy-4-methyl-2-oxo-2h-1-benzopyra;7-Hydroxy-4-methyl-2-oxo-2H-1-benzopyran;7-Hydroxy-4-methyl-2-oxo-3-chromene;7-hydroxy-4-methyl-coumari;Bilcolic;Bilicante;Biliton H
CAS:90-33-5
MF:C10H8O3
MW:176.17
EINECS:201-986-7
Product Categories:-;ketone;Aromatics Compounds;Aromatics;Coumarin;Fluorescent;Fluorescent Labels & Indicators;intermediate;CANTABILINE
Mol File:90-33-5.mol
4-Methylumbelliferone Structure
4-Methylumbelliferone Chemical Properties
Melting point 188.5-190 °C(lit.)
Boiling point 267.77°C (rough estimate)
density 1.1958 (rough estimate)
refractive index 1.5036 (estimate)
storage temp. -20°C Freezer
solubility Solubility Practically insoluble in water; slightly soluble in ethanol, ether,chloroform; soluble inmethanol
form Crystalline Powder
pka7.79(at 25℃)
color off-white to yellow
PH RangeGreen 1 uorescent (0.0) to weak blue 1 uorescent (2.0);Weak blue 1 uorescent (6.5) blue 1 uorescent (8.0)
Water Solubility slightly soluble
λmax221nm, 251nm, 322nm
Merck 14,4854
BRN 142217
Stability:Stable. Combustible. Incompatible with strong oxidizing agents.
Major Applicationcolor filter, electroluminescent displays, document security processes, lasers, integrated circuits, liquid crystal displays, surface brightening composition, oil products, teeth whitening agent, lysosomal enzyme assay, substrate for lipase, determining protein-protein-interactions in living cells, Antitrypanosomal, antileishmanial, anticancer, antiHIV, antimalarial, antibacterial, antifungal
CAS DataBase Reference90-33-5(CAS DataBase Reference)
NIST Chemistry ReferenceCoumarin, 7-hydroxy-4-methyl-(90-33-5)
EPA Substance Registry System2H-1-Benzopyran- 2-one, 7-hydroxy-4-methyl-(90-33-5)
Safety Information
Hazard Codes Xi,Xn
Risk Statements 36/37/38-20/21/22
Safety Statements 26-37/39-36
WGK Germany 2
RTECS GN7000000
Hazard Note Irritant
TSCA Yes
HS Code 29329990
MSDS Information
ProviderLanguage
7-Hydroxy-4-methylcoumarin English
ACROS English
SigmaAldrich English
ALFA English
4-Methylumbelliferone Usage And Synthesis
Chemical PropertiesOff-White to Yellow Crystals
UsesStandard for the fluorometric determination of enzyme activity. Highly fluorescent in alkaline solution. Fluorescence: max Abs. l = 360nm, max. Em. l = 449nm; pH > 9
Usescholoretic, spasmolytic, sunscreen
UsesAnalytical reagent.
DefinitionChEBI: A hydroxycoumarin that is umbelliferone substituted by a methyl group at position 4.
General DescriptionColorless crystals. Insoluble in water.
Air & Water ReactionsInsoluble in water.
Fire HazardFlash point data for 4-Methylumbelliferone are not available. 4-Methylumbelliferone is probably combustible.
Safety ProfileModerately toxic by ingestion and intraperitoneal routes. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.
Purification MethodsPurify it by recrystallisation from EtOH. It is very slightly soluble in cold H2O (solubility at 37o is 0.22%), slightly soluble in Et2O and CHCl3, but soluble in MeOH and AcOH. It has a blue fluorescence in aqueous EtOH and has UV: 221, max 251 and 322.5nm (MeOH). The IR has 3077 br, 1667, 1592, 1385, 1267, 1156, 1130 and 1066 cm-1.max The acetate has m 153-154o. [Woods & Sapp J Org Chem 27 3703 1962, Beilstein 18 III/IV 332, 18/1 V 439.]
4-Methylumbelliferone Preparation Products And Raw materials
Raw materialsEthyl acetoacetate
Preparation Products8-ACETYL-7-HYDROXY-4-METHYLCOUMARIN
Tag:4-Methylumbelliferone(90-33-5) Related Product Information
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