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Cas Database

Name	Kaempferol	EINECS	208-287-6
CAS No.	520-18-3	Density	1.688 g/cm³
PSA	111.13000	LogP	2.28240
Solubility	ethanol: 20 mg/mL in water	Melting Point	276 °C
Formula	C₁₅H₁₀O₆	Boiling Point	582.1 °C at 760 mmHg
Molecular Weight	286.241	Flash Point	226.1 °C
Transport Information	N/A	Appearance	Yellow solid
Safety	26-36	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	Flavone,3,4',5,7-tetrahydroxy- (7CI,8CI);3,4',5,7-Tetrahydroxyflavone;3'-Deoxyquercetin;5,7,4'-Trihydroxyflavonol;C.I. 75640;Indigo Yellow;Kaempferol;Kaempherol;Kampcetin;Kempferol;NSC 407289;NSC 656277;Nimbecetin;Pelargidenolon;Pelargidenon;Populnetin;Rhamnolutein;Rhamnolutin;Robigenin;Swartziol;Trifolitin;	Article Data	168

Kaempferol Synthetic route

: 22688-78-4
kaempferol 3-O-β-D-glucuronide

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With hydrogenchloride; methanol for 2h; Heating;	100%

: 480-10-4
astragalin

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With hydrogenchloride for 1h; Heating;	91.1%
With sulfuric acid

: 1098-92-6
kaempferol 5,7,4'-trimethyl ether

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With boron tribromide In dichloromethane for 24h; Heating;	91%
With 1-butylpyridinium bromide for 0.1h; microwave irradiation;	72%
With trimethylsilyl iodide In methanol at 35℃; for 96h; Inert atmosphere;

: 23405-70-1
5,7-bis(benzyloxy)-2-(4-(benzyloxy)phenyl)-3-hydroxy-4H-chromen-4-one

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With palladium 10% on activated carbon; hydrogen In tetrahydrofuran; methanol under 760.051 Torr; for 12h;	72%
With hydrogen; palladium(II) hydroxide In tetrahydrofuran; methanol at 20℃; for 3h;	58%

: 724434-08-6
dihydrokaempferol

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With potassium pyrosulfite In ethanol at 100℃;	60%
With oxygen; potassium carbonate In ethanol for 8h; Reflux;	23.4 g

: 480-20-6, 22425-48-5, 104486-98-8, 118333-31-6
Aromadendrin

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With sulfuric acid; water unter Durchleiten von Luft;
With water; sodium hydrogensulfite
With FLAVONOL SYNTHASE; TrxA-His-AtFLS1 In aq. buffer at 30℃; for 3h; pH=7.2; Kinetics; Concentration; Temperature; Enzymatic reaction;

: 480-10-4
astragalin

A: 2280-44-6
D-Glucose

B: 520-18-3
kaempferol

Conditions

Conditions	Yield
With emulsin
With sulfuric acid
With hydrogenchloride
Hydrolysis; Acid hydrolysis;

: 22688-78-4
kaempferol 3-O-β-D-glucuronide

A: 489-91-8, 528-16-5, 552-12-5, 577-46-8, 643-33-4, 2240-07-5, 6294-16-2, 10133-02-5, 18402-78-3, 18968-14-4, 21179-08-8, 23018-83-9, 33599-45-0, 33599-46-1, 46171-67-9, 46171-69-1, 46172-26-3, 70021-34-0, 71031-08-8, 104195-06-4, 106499-29-0, 124817-72-7
D-glucuronic acid

B: 520-18-3
kaempferol

Conditions

Conditions	Yield
Product distribution; acid hydrolysis, also mild acid hydrolysis and enzymatic hydrolysis, other flavonoid;

: 480-10-4, 23627-87-4, 31159-41-8, 69292-77-9, 107163-34-8
astragalin

: 520-18-3
kaempferol

Conditions

Conditions	Yield
acidic hydrolysis for structure determination;

: 25615-14-9
3,7-Di-O-glucosylkaempferol

: 520-18-3
kaempferol

Conditions

Conditions	Yield
With sulfuric acid

Kaempferol Chemical Properties

Indigo yellow is also named as Kaempferol;3,5,7-trihydroxy-2-(4-hydroxyphenyl)-4h-1-benzopyran-4-on;5,7,4’-trihydroxyflavonol;c.i.75640;campherol;kaempherol,and so on.

Molecular Formula: C₁₅H₁₀O₆
Molecular Weight: 286.24
EINECS: 208-287-6
Melting point: 276°C
Storage temp.: -20°C
Solubility: ethanol: 20 mg/mL
Form: powder
Colour Index: 75640
Color: yellow
Merck: 5274

Kaempferol Uses

Indigo yellow can commonly induce significant nuclear DNA degradation concurrent with lipid peroxidation.

Kaempferol Toxicity Data With Reference

1.		mma-sat 166 nmol/plate		MUREAV Mutation Research. 54 (1978),297.
2.		mnt-mus-ipr 200 mg/kg		MUREAV Mutation Research. 89 (1981),69.

RTECS: LK9275200

Kaempferol Consensus Reports

IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 , 1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 31 , 1983,p. 171.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) .

Kaempferol Safety Profile

Questionable carcinogen. Mutation data reported. When heated to decomposition it emits acrid smoke and fumes.

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36
F: 8-10-23

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