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
Synonyms
NSC2440;NSC 2440;NSC-2440;4-Methyllimetol;Methyl-2H-Chromen-2-One;Dihydroxy 4-methylcoumarin;5,7-dihydroxy-4-methyl-coumari;5,7-DIHYDROXY-4-METHYLCOUMARIN;4-METHYL-5,7-DIHYDROXYCOUMARIN;DIHYDROXY-4-METHYLCOUMARIN, 5,7-
CBNumber:
CB1734603
Molecular Formula:
C10H8O4
Molecular Weight:
192.17
MDL Number:
MFCD00016966
MOL File:
2107-76-8.mol
MSDS File:
SDS
Last updated:2024-11-20 11:41:24

5,7-Dihydroxy-4-methylcoumarin Properties

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
λmax 322nm(MeOH)(lit.)
Sensitive Light Sensitive
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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P301+P312+P330
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
TSCA  Yes
HazardClass  IRRITANT
HS Code  29321900
NFPA 704
1
2 0

5,7-Dihydroxy-4-methylcoumarin price More Price(25)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich PHL80159 5,7-Dihydroxy-4-methylcoumarin phyproof? Reference Substance 2107-76-8 100mg $262 2024-03-01 Buy
Sigma-Aldrich 543594 5,7-Dihydroxy-4-methylcoumarin 98% 2107-76-8 1g $92.6 2024-03-01 Buy
TCI Chemical D4747 5,7-Dihydroxy-4-methylcoumarin >98.0%(T) 2107-76-8 1g $137 2024-03-01 Buy
Alfa Aesar A14528 5,7-Dihydroxy-4-methylcoumarin, 98% 2107-76-8 1g $109 2024-03-01 Buy
Alfa Aesar A14528 5,7-Dihydroxy-4-methylcoumarin, 98% 2107-76-8 5g $298.65 2024-03-01 Buy
Product number Packaging Price Buy
PHL80159 100mg $262 Buy
543594 1g $92.6 Buy
D4747 1g $137 Buy
A14528 1g $109 Buy
A14528 5g $298.65 Buy

5,7-Dihydroxy-4-methylcoumarin Chemical Properties,Uses,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

Global( 182)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Yanxi Chemical Co., Ltd.
+8617531190177 peter@yan-xi.com China 5857 58
Hebei Weibang Biotechnology Co., Ltd
+8617732866630 bess@weibangbio.com China 18154 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038 zheyansh@163.com CHINA 3619 58
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29884 58
Chengdu Biopurify Phytochemicals Ltd.
+8618080483897 sales@biopurify.com China 3772 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28172 58
Shaanxi Pioneer Biotech Co., Ltd .
+8613259417953 sales@pioneerbiotech.com China 3000 58
Chongqing Chemdad Co., Ltd
+86-023-6139-8061 +86-86-13650506873 sales@chemdad.com China 39894 58
Shanghai Standard Technology Co., Ltd.
18502101150 ft-sales@nature-standard.com CHINA 1923 58
Zhengzhou Alfa Chemical Co.,Ltd
+8618530059196 sale04@alfachem.cn China 13503 58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5,7-Dihydroxy-4-methylcoumarin pictures 2024-11-19 5,7-Dihydroxy-4-methylcoumarin
2107-76-8
US $46.00 / mL 99.43% 10g TargetMol Chemicals Inc.
5,7-Dihydroxy-4-methylcoumarin pictures 2024-10-29 5,7-Dihydroxy-4-methylcoumarin
2107-76-8
US $0.00-0.00 / KG 1KG 99% 500000kg Hebei Weibang Biotechnology Co., Ltd
5,7-Dihydroxy-4-methylcoumarin pictures 2024-10-25 5,7-Dihydroxy-4-methylcoumarin
2107-76-8
US $60.00-30.00 / KG 1KG 0.99 10 tons Hebei Yanxi Chemical Co., Ltd.
5,7-Dihydroxy-4-methylcoumarin ,98% 5,7-Dihydroxy-4-methyl-2H-1-benzopyran-2-one 5,7-Dihydroxy-4-methyl-2-chromenone Coumarin, 5,7-dihydroxy-4-methyl- DIHYDROXY-4-METHYLCOUMARIN, 5,7- DIHYDROXY-4-METHYLCOUMARIN, 5,7-(RG) 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 5,7-dihydroxy-4-methyl-coumari 5,7-dihydroxy-4-methyl-2-benzopyrone 4-METHYL-5,7-DIHYDROXYCOUMARIN 97% 5,7-Dihydroxy-4-methylchromen-2-one 4-Methyllimetol 2H-1-Benzopyran-2-one, 5,7-dihydroxy-4-methyl 5,7-Dihydroxy-4-methylcoumarin monohydrate Methyl-2H-Chromen-2-One 5,7-dihydroxy-4-methyl-1H-chromen-2-one 5,7-Dihydroxy-4-methylcoumarin ISO 9001:2015 REACH NSC 2440 NSC2440 NSC-2440 JRH-05201, 5,7-Dihydroxy-4-methyl-2H-chromen-2-one, 97% 5,7-Dihydroxy 4-methylcoumarin-RM Dihydroxy 4-methylcoumarin 2107-76-8 217-76-8 C10H8O4H2O Heterocyclic Building Blocks Coumarins Building Blocks Building Blocks Chemical Synthesis Heterocyclic Building Blocks Building Blocks Heterocyclic Building Blocks Coumarins