ChemicalBook > CAS DataBase List > 5,7-Dihydroxy-4-methylcoumarin

5,7-Dihydroxy-4-methylcoumarin

CAS No.2107-76-8
Chemical Name:5,7-Dihydroxy-4-methylcoumarin
CBNumber:CB1734603
Molecular Formula:C10H8O4
Formula Weight:192.17
MOL File:2107-76-8.mol

5,7-Dihydroxy-4-methylcoumarin Property

Melting point 296-299 °C (lit.)
Boiling point 472.1±14.0 °C(Predicted)
Density 1.456±0.06 g/cm3(Predicted)
storage temp. -20°C Freezer, Under inert atmosphere
solubility DMSO (Slightly), Methanol (Slightly)
pka 7.29±0.20(Predicted)
form Solid
color Off-White to Pale Green
Sensitive Light Sensitive
λmax 322nm(MeOH)(lit.)
BRN 179133
InChIKey QNVWGEJMXOQQPM-UHFFFAOYSA-N
CAS DataBase Reference 2107-76-8(CAS DataBase Reference)
FDA UNII VP62D4346M
EPA Substance Registry System 5,7-Dihydroxy-4-methylcoumarin (2107-76-8)
UNSPSC Code 41116107
NACRES NA.24

Safety

Hazard Codes :Xi
Risk Statements :36/37/38
Safety Statements :26-36
WGK Germany :3
TSCA :Yes
HazardClass :IRRITANT
HS Code :29321900
Hazardous Substances Data :2107-76-8(Hazardous Substances Data)

NFPA 704:

	1
2		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H302
Precautionary statements P301+P312+P330

5,7-Dihydroxy-4-methylcoumarin Price More Price(5)

Brand: Sigma-Aldrich
Product number: 543594
Product name : 5,7-Dihydroxy-4-methylcoumarin
Purity: 98%
Packaging: 1G
Price: ₹7140
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 543594
Product name : 5,7-Dihydroxy-4-methylcoumarin
Purity: 98%
Packaging: 1G
Price: ₹7140
Updated: 2022/06/14
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Brand: ALFA India
Product number: ALF-A14528-06
Product name : 5,7-Dihydroxy-4-methylcoumarin, 98%
Purity:
Packaging: 5g
Price: ₹33708
Updated: 2022/05/26
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Brand: ALFA India
Product number: ALF-A14528-03
Product name : 5,7-Dihydroxy-4-methylcoumarin, 98%
Purity:
Packaging: 1g
Price: ₹6950
Updated: 2022/05/26
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Brand: TCI Chemicals (India)
Product number: D4747
Product name : 5,7-Dihydroxy-4-methylcoumarin
Purity: min. 97.0 %
Packaging: 1G
Price: ₹7800
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5,7-Dihydroxy-4-methylcoumarin Chemical Properties,Usage,Production

Chemical Properties White metallic powder
Uses 5,7-Dihydroxy-4-methylcoumarin may be used in the synthesis of pyrano[2,3-h]coumarin derivatives and 5,7-dihydroxy-8-formyl-4-methylcoumarin.
Definition ChEBI: 5,7-Dihydroxy-4-methylcoumarin is a hydroxycoumarin.
General Description Yellow powder. Fluoresces blue. Absorbs ultraviolet light.
Air & Water Reactions Slightly water soluble .
Reactivity Profile 5,7-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 Hazard Flash point data for 5,7-Dihydroxy-4-methylcoumarin are not available. 5,7-Dihydroxy-4-methylcoumarin is probably combustible.