Chemical fact sheet: Kaempferol 3-O-[x"-O-(acetyl)-α-L-rhamnoside] (II)

Kaempferol 3-O-[x"-O-(acetyl)-α-L-rhamnoside] (II)

Basics

Category
Flavone and flavonol derivatives
IUPAC-name
(2R,3S,4S,5S,6R)-2-((5,7-dihydroxy-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-3-yl)oxy)-4,5-dihydroxy-6-methyltetrahydro-2H-pyran-3-yl acetate
Formula
No formula stored
Exact mass
474.11621 g/mol
Molecular weight
No weights stored
Structure

Sources

In summary, the chemical kaempferol 3-O-[x"-O-(acetyl)-α-L-rhamnoside] (II) has been analyzed from following sources:

Polygonum tinctorium
1st 2nd 3rd

Note that an analysis result in the database may indicate either presence or lack thereof of a chemical in an analyzed sample.

References

  1. S. Tokuyama-Nakai, H. Kimura, Y. Hirabayashi, T. Ishihara, M. Jisaka, and K. Yokota, "Constituents of flavonol O-glycosides and antioxidant activities of extracts from seeds, sprouts, and aerial parts of Polygonum tinctorium Lour.," Heliyon , vol. 5 , no. 3 , pp. e01317 , DOI: 10.1016/j.heliyon.2019.e01317 .

Analysis results

Analysis result 1

Detection technique Values Units
UV/Vis 264
344 		nm
[M⁻ H]⁻ 473.10000 m/z
MS²⁻ 285.04000 m/z
STD
False
TLC
False
UV/Vis detector description
UPLC-PDA
Mass spectrometer description
UPLC-ESI-TOF/MS
Organism
Polygonum tinctorium
cultivated
fresh, ground into small pieces
Collection dates
2016, 2017
Sample note
The seeds were obtained from Takii Seed (Kyoto, Japan) and were deposited as the voucher specimens of No. 16001 and No. 17001 in the Department of Research and Development, Kotobuki Seika, in Japan.
Dried material storage temperature
-20 °C
Extraction solvents
80 % methanol
Extraction repeats
1
Extraction time
20 min
Extraction temperature
20 °C
Extract drying method
evaporation to dryness
Extract drying temperature
40 °C
Analysis solvents
0.1 % formic acid:ACN, 90:10, (v/v)
Detection note
473.10 --> 285.04 [M - H - acetyl-rhamnose]–
References

S. Tokuyama-Nakai, H. Kimura, Y. Hirabayashi, T. Ishihara, M. Jisaka, and K. Yokota, "Constituents of flavonol O-glycosides and antioxidant activities of extracts from seeds, sprouts, and aerial parts of Polygonum tinctorium Lour.," Heliyon , vol. 5 , no. 3 , pp. e01317 , DOI: 10.1016/j.heliyon.2019.e01317 .

Analysis result 2

Detection technique Values Units
[M⁻ H]⁻ 473 : ND m/z
STD
False
TLC
False
UV/Vis detector description
UPLC-PDA
Mass spectrometer description
UPLC-ESI-TOF/MS
Organism
Polygonum tinctorium
cultivated
fresh, ground into small pieces
Collection dates
2016, 2017
Sample note
The plants were grown in a field of Sakaiminato, Tottori in Japan (as described previously by Kimura et al. 2015). The voucher specimens of sprouts, No. 16002 and No. 17002 were deposited in the Department of Research and Development, Kotobuki Seika, in Japan..
Dried material storage temperature
-20 °C
Extraction solvents
80 % methanol
Extraction repeats
1
Extraction time
20 min
Extraction temperature
20 °C
Extract drying method
evaporation to dryness
Extract drying temperature
40 °C
Analysis solvents
0.1 % formic acid:ACN, 90:10, (v/v)
References

S. Tokuyama-Nakai, H. Kimura, Y. Hirabayashi, T. Ishihara, M. Jisaka, and K. Yokota, "Constituents of flavonol O-glycosides and antioxidant activities of extracts from seeds, sprouts, and aerial parts of Polygonum tinctorium Lour.," Heliyon , vol. 5 , no. 3 , pp. e01317 , DOI: 10.1016/j.heliyon.2019.e01317 .

Analysis result 3

Detection technique Values Units
[M⁻ H]⁻ 473 : ND m/z
STD
False
TLC
False
UV/Vis detector description
UPLC-PDA
Mass spectrometer description
UPLC-ESI-TOF/MS
Organism
Polygonum tinctorium
cultivated
fresh, ground into small pieces
Collection dates
2016, 2017
Sample note
The plants were grown in a field of Sakaiminato, Tottori in Japan (as described previously by Kimura et al. 2015). The voucher specimens of aerial parts (stems, leaves), No. 16003 and No. 17003 were deposited in the Department of Research and Development, Kotobuki Seika, in Japan..
Dried material storage temperature
-20 °C
Extraction solvents
80 % methanol
Extraction repeats
1
Extraction time
20 min
Extraction temperature
20 °C
Extract drying method
evaporation to dryness
Extract drying temperature
40 °C
Analysis solvents
0.1 % formic acid:ACN, 90:10, (v/v)
References

S. Tokuyama-Nakai, H. Kimura, Y. Hirabayashi, T. Ishihara, M. Jisaka, and K. Yokota, "Constituents of flavonol O-glycosides and antioxidant activities of extracts from seeds, sprouts, and aerial parts of Polygonum tinctorium Lour.," Heliyon , vol. 5 , no. 3 , pp. e01317 , DOI: 10.1016/j.heliyon.2019.e01317 .