5,7-Dihydroxy-4-methylcoumarin
2107-76-8
99%
Bottle,barrel,cargo,container,etc.
2026-07-13
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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DescriptionKeywords
2107-76-8
5,7-Dihydroxy-4-methylcoumarin
C10H8O4
Quick DetailsProName:5,7-Dihydroxy-4-methylcoumarin
CasNo:2107-76-8
Molecular Formula:C10H8O4
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsBasic Info-
Product Name:
5,7-Dihydroxy-4-methylcoumarin
Other Name:2H-1-Benzopyran-2-one,5,7-dihydroxy-4-methyl-;Coumarin,5,7-dihydroxy-4-methyl-;5,7-Dihydroxy-4-methyl-2H-1-benzopyran-2-one;4-Methyl-5,7-dihydroxycoumarin;5,7-Dihydroxy-4-methylcoumarin;NSC 5302;5,7-Dihydroxy-4-methyl-chromen-2-one;5,7-Dihydroxy-4-methyl-2H-chromen-2-one
CAS No.:2107-76-8
Molecular Formula:C10H8O4
InChIKeys:InChIKey=QNVWGEJMXOQQPM-UHFFFAOYSA-N
Molecular Weight:192.17
Exact Mass:192.17
BRN:179133
EC Number:218-289-9
UNII:VP62D4346M
NSC Number:5302
DSSTox ID:DTXSID0025078
Color/Form:NEEDLES FROM ALCOHOL, LEAVES FROM ACETIC ACID|YELLOW TO WHITE SOLID
HScode:2932209090
Categories:
Characteristics-
PSA:
66.8
XLogP3:2.58
Appearance:5,7-dihydroxy-4-methyl coumarin is a yellow powder. Fluoresces blue. Absorbs ultraviolet light. (NTP, 1992)
Density:1.5±0.1 g/cm3
Melting Point:282-284 °C
Boiling Point:472.1±14.0 °C at 760 mmHg
Flash Point:197.9±13.6 °C
Refractive Index:1.652
Water Solubility:SOL IN SODIUM HYDROXIDE
Collision Cross Section:134.4 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]
Experimental Properties:FLUORESCES BLUE, ABSORBS UV LIGHT
Air and Water Reactions:Slightly water soluble (NTP, 1992).
Reactive Group:Esters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters
Reactivity Profile:5,7-DIHYDROXY-4-METHYL COUMARIN 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 pKa = 9.88). 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.
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
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Payment Terms:
TT against copy of documents,D/P,L/C
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Average lead Time:
5
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Total Annual Revenue:
Above $100 million
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Year of Establishment:
2020
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Certifications:
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
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