Quercetin
11 Inquiries
117-39-5
99%
Bottle,barrel,cargo,container,etc.
2026-06-30
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
117-39-5
Quercetin
C15H10O7
Quick DetailsProName:Quercetin
CasNo:117-39-5
Molecular Formula:C15H10O7
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:
Quercetin
Other Name:4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;Flavone,3,3′,4′,5,7-pentahydroxy-;Flavone,3,4′,5,5′,7-pentahydroxy-;2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one;C.I. 75670;Meletin;3,5,7,3′,4′-Pentahydroxyflavone;Quercetin;Quercetine;Quercetol;Quertine;Sophoretin;Xanthaurine;3,3′,4′,5,7-Pentahydroxyflavone;Cyanidelonon 1522;Quertin;NSC 57655;NSC 9219;2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-benzopyran-4-one;Corvitin;Korvitin;3′-Hydroxykaempferol;LDN 0052529;Lipoflavon;3,5,7-Trihydroxy-2-(3,4-dihydroxyphenyl)-4H-chromen-4-one;2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one;2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one;73123-10-1;74893-81-5
CAS No.:117-39-5
Molecular Formula:C15H10O7
InChIKeys:InChIKey=REFJWTPEDVJJIY-UHFFFAOYSA-N
Molecular Weight:302.24
Exact Mass:302.24
EC Number:204-187-1
UNII:9IKM0I5T1E
NSC Number:9219
UN Number:2811
DSSTox ID:DTXSID4021218
NCI Thesaurus Code:C792
Color/Form:Yellow needles (dilute alcohol, +2 water)
HScode:29329990
Categories:
Characteristics-
PSA:
127
XLogP3:1.5
Appearance:Quercetin appears as yellow needles or yellow powder. Converts to anhydrous form at 203-207°F. Alcoholic solutions taste very bitter. (NTP, 1992)
Density:1.3616 (rough estimate)
Melting Point:316.5 °C
Boiling Point:Sublimes
Flash Point:248.1±25.0 °C
Refractive Index:1.4790 (estimate)
Water Solubility:H2O: <0.1 g/100 mL at 21 ºC
Storage Conditions:Store at 0-5°C
Vapor Pressure:2.81X10-14 mm Hg at 25 deg C (est)
Toxicity:LD50 oral in rat: 161mg/kg
Henrys Law Constant:Henry's Law constant = 6.60X10-21 atm-cu m/mol at 25 °C (est)
Dissociation Constants:pKa1 = 7.17 (phenol); pKa2 = 8.26 (phenol); pKa3 = 10.13 (phenol); pKa4 = 12.30 (phenol); pKa5 = 13.11 (phenol) (est)
Collision Cross Section:166.7 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|158.98 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|163.4 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]
Experimental Properties:Yellow needles from dil alcohol. Becomes anhydrous at 95-97 °C. When anhydrous, decomposes at 314 °C; uv max (alcohol) 258, 375 nm (log epsilon 2.75, 2.75). One gram dissolves in 290 mL absolute alcohol, in 25 mL boiling alcohol. Soluble in glacial acetic acid; in aqueous alkaline solutions with yellow color. Practically insoluble in water. Alcoholic solutions taste very bitter. /Dihydrate/|Crystals; mp 123-125 °C; UV max (chloroform): 249, 343 nm (log epsilon 4.43, 4.14) /Pentabenzyl ether/|Hydroxyl radical reaction rate constant = 2.39X10-10 cu cm/molec-sec at 25 °C (est)|Ozone reaction rate constant = 1.05X10-16 cu cm/molec-sec at 25 °C (est)
Air and Water Reactions:Sensitive to exposure to air and light. Insoluble in water.
Reactive Group:Ketones
Reactivity Profile:QUERCETIN is a strong antioxidant and a metal chelator. Promotes the formation of nitrosamines (NTP, 1992).
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 3, Oral
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H301 Toxic if swallowed
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Response P301+P316 IF SWALLOWED: Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P330 Rinse mouth.
Storage 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
Quercetin tablets and capsules should be stored at room temp, away from heat, moisture, and direct light.
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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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Inquiry History11 Inquiries
Country Product Purchase Quantity Date Posted 
Latvia
Quercetin 117-39-5
600 KG Jul 22, 2023 
Saudi Arabia
95% HPLC Quercetin
10 KG Dec 26, 2023 
Pakistan
Quercetin
2 KG Nov 3, 2023
Latvia
Quercitine, Quercitine Dihydrate, sophora japonica
600 KG Jul 22, 2023 
South Africa
Quercetin
5 KG Nov 26, 2023 
Argentina
Quercetin
5 KG Jan 7, 2026 
United States
Meletin
1 KG Jul 4, 2025 
Kenya
quercetin
1 KG Apr 14, 2024 
Taiwan, China
Quercetin
50 KG Feb 1, 2024
South Africa
Quercetin
1 MT Jan 26, 2024
South Africa
Quercetin 95%
1.00 KG Jul 3, 2023 Post an enquiry for this product
