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021030

 

 

Quercetagetin  [90-18-6]

C15H10O8

MW 318.23

mp >300oC

Merck Index 12,8215

 

 

 

 

Quercetin-3-arabinoglucoside:  see 020061  Peltatoside

 

P-102

 

Quercetin dihydrate   [6151-25-3]

(3,5,7,3',4'-Pentahydroxyflavone dihydrate)

C15H10O7.2H2O

MW 338.29

mp ~315-318oC (dec)

Yellow powder

Merck Index 12, 8216

 

 

 

021135S

 

Quercetin with HPLC  [117-39-5]

 

 

 

Quercetin-3-galactoside:  see  021027S  Hyperoside

 

Quercetin-3-glucoside:  see  020062  Isoquercitrin

 

021099

 

Quercetin-3-O-β-D-glucopyranosyl-6"-acetate

[1245-14-4]

C23H22O13

MW 506.41

Yellow powder

Soluble in water:ethanol:methylketone:

ethyl acetate:acetyl acetone

(26:9:3:3:1)

 

 

 

 

 

Quercetin 4'-methyl ether:  see  021140S  Tamarixetin with HPLC

 

021285

 

Quercetin-3,5,7,3',4'-pentamethyl ether

[1247-97-8]

(3,5,7,3',4'-Pentamethoxyflavone)

C20H20O7

MW 372.36

mp 152-156oC

 

 

 

 

 

Quercetin-3-rhamnoside:  see  021031  Quercitrin

 

 


021242

 

Quercetin-3-O-sulfate potassium salt  [6089-05-6]

C15H9O10SK

MW 420.38

 

 

 

 

Quercetin tetramethyl ether:

see  H-115  5-Hydroxy-3,7,3',4'-tetramethoxyflavone

 

021074

 

Quercetin-3,7,3',4'-tetramethyl ether   [1245-15-4]

(Retusin)

C19H18O7

MW 358.35

Yellow powder

Soluble in toluene:ethyl formiate:formic acid (5:4:1)

021031

 

Quercitrin  [522-12-3]

(Quercetin-3-O-rhamnoside)

C21H20O11

MW 448.38

mp 174-183oC

Yellowish powder with brown cast

Merck Index 12, 8219

 

 

021236S

 

Quercitrin with HPLC   [522-12-3]

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Resokaempferol:  see  T-251  3,7,4'-Trihydroxyflavone

 

Retusin:   see  021074  Quercitin-3,7,3',4'-tetramethyl ether

 

Rhamnetin:  see  R-101  3,5,3',4'-Tetrahydroxy-7-methoxyflavone

 

020079

 

Rhoifolin  [17306-46-6]

(Apigenin-7-neohesperidoside;

Apigenin-7-rhamnoglucoside)

C27H30O14

MW 578.53

mp ~245oC

Yellow powder

Soluble in toluene:methyl ethyl ketone:methanol (4:3:3)

 

 

021137S

 

Rhoifolin with HPLC  [17306-46-6]

MW 578.53

 

 

 

Robinetin:  see  P-103  7,3,3',4',5'-Pentahydroxyflavone

 

Robinetin trimethyl ether:

see  D-124  3,7-Dihydroxy-3',4',5'-trimethoxyflavone

 

 


021032

 

Robinin  [301-19-9]

(Kaempferol-3-O-robinoside-7-O-rhamnoside)

C33H40O19

MW 740.65

mp 194-195oC

Merck Index 12, 8404

 

020080

 

Rutin trihydrate  [153-18-4]

C27H30O16.3H2O

MW 664.58

mp 188-190oC

Yellow powder

Soluble in ethyl acetate:formic acid:acetic acid (100:11:11)

Merck Index 12,8456

 

 

021139S

 

Rutin with HPLC  [153-18-4]

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021238S

 

Saponarin with HPLC  [20310-89-8]

C27H30O16

MW 610.53

mp 228oC (dec)

Merck Index 12, 8512

 

 

 

Sciadopitysin:  see  021021  Amentoflavone-7,4,4'-trimethyl ether

 

Scutellarein:  see  021165  6-Hydroxyapigenin

 

021278

 

Scutellarein tetramethyl ether  [1168-42-9]

(5,6,7,4'-tetramethoxyflavone)

C19H18O6

MW 342.33

mp 142-143oC

 

 

 

Sinensetin:  see  P-201  5,6,7,3',4'-Pentamethoxyflavone

 

021201

 

Spiraeoside  [20229-56-5]

C21H20O12

MW 464.37

 

 

 

020088S

 

Sulfuretin with HPLC  [120-05-8]

(6,3',4'-Trihydroxyaurone)

C15H10O5

MW 270.25

mp 295oC

Merck Index 12, 9145

Soluble in toluene:methanol (50:25)

 

 

 

Syringetin: see  S-105  3’,5’-Dimethoxy-3,5,7,4'-tetrahydroxyflavone

 

021246S

 

Syringetin-3-O-galactoside with HPLC

[55025-56-4]

C23H24O13

MW 508.43

mp 248oC

 

 

021245S

 

Syringetin-3-O-glucoside with HPLC

[40039-49-4]

C23H24O13

MW 508.43

mp 250oC  (dec)

 

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021140S

 

Tamarixetin with HPLC  [603-61-2]

(Quercetin-4'-methylether;

 4'-Methoxy-3,5,7,3'-tetrahydroflavone)

C16H12O7

MW 316.27

mp 265-268oC

 

 

 

 

Tectochrysin:  see  H-110  5-Hydroxy-7-methoxyflavone

 

22-318

 

 

 

3,6,2’,3’-Tetrahydroxyflavone, 97%

C15H10O6

MW 286.25

mp 269-270oC (dec)