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

5,7-Dihydroxy-4-methylcoumarin

Product Name
5,7-Dihydroxy-4-methylcoumarin
CAS No.
2107-76-8
Chemical Name
5,7-Dihydroxy-4-methylcoumarin
Synonyms
NSC2440;NSC 2440;NSC-2440;4-Methyllimetol;Methyl-2H-Chromen-2-One;Dihydroxy 4-methylcoumarin;5,7-DIHYDROXY-4-METHYLCOUMARIN;4-METHYL-5,7-DIHYDROXYCOUMARIN;5,7-dihydroxy-4-methyl-coumari;DIHYDROXY-4-METHYLCOUMARIN, 5,7-
CBNumber
CB1734603
Molecular Formula
C10H8O4
Formula Weight
192.17
MOL File
2107-76-8.mol
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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)
form 
Solid
pka
7.29±0.20(Predicted)
color 
Off-White to Pale Green
λmax
322nm(MeOH)(lit.)
Sensitive 
Light Sensitive
BRN 
179133
InChIKey
QNVWGEJMXOQQPM-UHFFFAOYSA-N
CAS DataBase Reference
2107-76-8(CAS DataBase Reference)
EPA Substance Registry System
5,7-Dihydroxy-4-methylcoumarin (2107-76-8)
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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)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHL80159
Product name
5,7-Dihydroxy-4-methylcoumarin
Purity
phyproof? Reference Substance
Packaging
100mg
Price
$262
Updated
2024/03/01
Sigma-Aldrich
Product number
543594
Product name
5,7-Dihydroxy-4-methylcoumarin
Purity
98%
Packaging
1g
Price
$92.6
Updated
2024/03/01
TCI Chemical
Product number
D4747
Product name
5,7-Dihydroxy-4-methylcoumarin
Purity
>98.0%(T)
Packaging
1g
Price
$137
Updated
2024/03/01
Alfa Aesar
Product number
A14528
Product name
5,7-Dihydroxy-4-methylcoumarin, 98%
Packaging
1g
Price
$109
Updated
2024/03/01
Alfa Aesar
Product number
A14528
Product name
5,7-Dihydroxy-4-methylcoumarin, 98%
Packaging
5g
Price
$298.65
Updated
2024/03/01
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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.

5,7-Dihydroxy-4-methylcoumarin Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 5,7-Dihydroxy-4-methylcoumarin manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
5,7-Dihydroxy-4-methylcoumarin 2107-76-8
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-29
Hebei Yanxi Chemical Co., Ltd.
Product
5,7-Dihydroxy-4-methylcoumarin 2107-76-8
Price
US $60.00-30.00/KG
Min. Order
1KG
Purity
0.99
Supply Ability
10 tons
Release date
2023-09-05
R&D Scientific Inc.
Product
5,7-Dihydroxy-4-methylcoumarin 2107-76-8
Price
US $890.00/g
Min. Order
1g
Purity
97
Supply Ability
500 Kg
Release date
2024-03-31

2107-76-8, 5,7-Dihydroxy-4-methylcoumarinRelated Search:


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  • 5,7-Dihydroxy-4-methylcoumarin ISO 9001:2015 REACH
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  • 5,7-Dihydroxy 4-methylcoumarin-RM
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