- Quercetin
- Quercetin dihydrate
- QUERCETIN-3,5,7,3',4'-PENTAMETHYL ETHER
- Quercetin-7-glucoside
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Cas Database |
| Name |
Quercetin |
EINECS | 204-187-1 |
| CAS No. | 117-39-5 | Density | 1.799 g/cm3 |
| PSA | 131.36000 | LogP | 1.98800 |
| Solubility | <0.1 g/100 mL at 21 ºC in water | Melting Point |
314-317 ºC |
| Formula | C15H10O7 | Boiling Point | 642.4 ºC at 760 mmHg |
| Molecular Weight | 302.24 | Flash Point | 248.1 ºC |
| Transport Information | N/A | Appearance | Yellow to green yellow crystalline powde |
| Safety | 45-36-26 | Risk Codes | 25-36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 T, Xi
|
| Synonyms |
4H-1-benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;Quercetin content;Cyanidelonon 1522;3,5,7-Trihydroxy-2-(3,4-dihydroxyphenyl)-4H-chromen-4-on;3,5,7,3,4-Pentahydroxyflavone;Quercetine;Quercetol;3,3',4',5,7-pentahydroxyflavone;Quercetin 99%;Sophoretin;C.I. natural yellow 10 & 13;C.I. Natural Yellow 10;Quertin;C.I. 75670;Quertine;t-Gelb bzw. grun 1;3,4,5,7-Tetrahydroxyflavan-3-ol;4H-1-Benzopyran-4-one, 2- (3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;Xanthaurine;3,5,7,3, 4-Pentahydroxyflavone;Flavin meletin;Flavone, 3,3,4,5,7-pentahydroxy-;2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one;Flavone, 3,4,5,5,7-pentahydroxy-;3,3,4,5,7-Pentahydroxyflavone;2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-chromen-4-one; |
Article Data | 243 |
Quercetin Synthetic route
| Conditions | Yield |
|---|---|
| With hydrogenchloride; methanol for 3h; Heating; | 96% |
| With water at 100℃; Kinetics; Ionic liquid; | 90% |
| With sulfuric acid; water at 20℃; for 0.166667h; | 89% |
- 7647-01-0
hydrogenchloride
- 187221-65-4
quercetin triphenylantimony complex
A
- 117-39-5
quercetol
B
- 594-31-0, 34716-91-1, 20265-29-6
triphenylantimony dichloride
| Conditions | Yield |
|---|---|
| heating (3 h, water bath); soln. pouring into Petri dish, solid extraction by benzene; | A 75% B 88% |
- 95412-48-9
6,8-dibromoquercetin
- 117-39-5
quercetol
| Conditions | Yield |
|---|---|
| With sodium sulfite In water at 60℃; for 18h; Green chemistry; | 87% |
| Conditions | Yield |
|---|---|
| With boron tribromide In dichloromethane for 6h; Heating; | 83% |
| With trimethylsilyl iodide In methanol at 35℃; for 96h; Inert atmosphere; |
| Conditions | Yield |
|---|---|
| With sulfuric acid at 100℃; for 1h; | A n/a B 68% |
| With grape snail enzymes | |
| With rhamnodiastase |
| Conditions | Yield |
|---|---|
| With sulfuric acid at 100℃; for 2h; | A n/a B n/a C 68% |
| With sulfuric acid at 100℃; for 2h; | A n/a B n/a C 47% |
- 491-50-9, 36450-05-2, 59985-52-3
quercetin 7-O-β-D-glucopyranoside
- 117-39-5
quercetol
| Conditions | Yield |
|---|---|
| Acid hydrolysis; | 68% |
| With sulfuric acid for 1h; Heating; |
- 491-50-9, 36450-05-2, 59985-52-3
quercetin 7-O-β-D-glucopyranoside
A
- 50-99-7
D-glucose
B
- 117-39-5
quercetol
| Conditions | Yield |
|---|---|
| With water Acidic conditions; | A n/a B 65% |
| With water Acidic conditions; |
| Conditions | Yield |
|---|---|
| With sulfuric acid | A n/a B 64.3% |
| Product distribution; object of study - products of acid hydrolysis; | |
| With 2M HCl In hydrogenchloride at 90℃; for 1h; Product distribution; other reagent; |
| Conditions | Yield |
|---|---|
| With water Acidic conditions; | A n/a B 64% |
| Acidic conditions; | |
| Acidic aq. solution; |
Quercetin Chemical Properties
Molecular Structure:
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Molecular Formula: C15H10O7
Molecular Weight: 302.2357
IUPAC Name: 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one
Synonyms of Quercetin (CAS NO.117-39-5): 3',4',5,7-Tetrahydroxyflavan-3-ol ; 3,3',4',5,7-Pentahydroxyflavone ; 3,5,7,3',4'-Pentahydroxyflavone ; 3,5,7-Trihydroxy-2-(3,4-dihydroxyphenyl)-4H-chromen-4-on ; 5-18-05-00494 (Beilstein Handbook Reference) ; AI3-26018 ; BRN 0317313 ; C.I. 75670 ; C.I. Natural Yellow 10 ; CCRIS 1639 ; CI 75670 ; CI Natural Yellow 10 ; EINECS 204-187-1 ; Flavin meletin ; Flavone, 3,3',4',5,7-pentahydroxy- ; HSDB 3529 ; Kvercetin ; Kvercetin [Czech] ; NCI-C60106 ; NSC 9219 ; NSC 9221 ; Quercetin content ; Sophoretin ; T-Gelb bzw. grun 1 ; UNII-9IKM0I5T1E ; 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy- ; Natural Yellow 10
CAS NO: 117-39-5
Classification Code: Antioxidants ; Mutation data ; Natural Product ; Protective Agents ; Reproductive Effect ; Tumor data
Melting point: 314-317°C
Index of Refraction: 1.823
Molar Refractivity: 73.31 cm3
Molar Volume: 167.9 cm3
Surface Tension: 114.8 dyne/cm
Density: 1.799 g/cm3
Flash Point: 248.1 °C
Enthalpy of Vaporization: 98.26 kJ/mol
Boiling Point: 642.4 °C at 760 mmHg
Vapour Pressure: 4.24E-17 mmHg at 25°C
Quercetin Uses
Quercetin (CAS NO.117-39-5) has demonstrated significant anti-inflammatory activity by inhibiting both manufacture and release of histamine and other allergic/inflammatory mediators.In addition, it exerts potent antioxidant activity and vitamin C-sparing action. It has also been claimed that quercetin reduces blood pressure in hypertensive subjects. An in-vitro study on fat cells suggested that quercetin and resveratrol may have a synergistic anti-obesity effect.
Quercetin Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 3gm/kg (3000mg/kg) | BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 64, Pg. 186, 1968. |
| mouse | LD50 | intravenous | 18mg/kg (18mg/kg) | U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#02589, | |
| mouse | LD50 | oral | 159mg/kg (159mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: MUSCLE WEAKNESS LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Proceedings of the Society for Experimental Biology and Medicine. Vol. 77, Pg. 269, 1951. |
| mouse | LD50 | subcutaneous | 97mg/kg (97mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: MUSCLE WEAKNESS LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Proceedings of the Society for Experimental Biology and Medicine. Vol. 77, Pg. 269, 1951. |
| rabbit | LD50 | intravenous | 100mg/kg (100mg/kg) | FAO Nutrition Meetings Report Series. Vol. 46A, Pg. 18, 1969. | |
| rat | LD50 | oral | 161mg/kg (161mg/kg) | Reviews of Environmental Contamination and Toxicology. Vol. 113, Pg. 47, 1990. |
Quercetin Safety Profile
Hazard Codes of Quercetin (CAS NO.117-39-5): 
T,
Xi
Risk Statements: 25-36/37/38
R25: Toxic if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 45-36-26
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S36: Wear suitable protective clothing.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: 2811
RTECS: LK8750000
HazardClass: 6.1(b)
PackingGroup: III
Quercetin Specification
Drug interactions of Quercetin (CAS NO.117-39-5): It is contraindicated with some antibiotics; it may interact with fluoroquinolones (a type of medicinal antibiotic), as quercetin competitively binds to bacterial DNA gyrase. It is also a potent inhibitor of CYP3A4 and CYP2C9, which are enzymes that break down most drugs in the body.
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