Pratensein
Basics
Category
Isoflavone derivatives
IUPAC-name
5,7-dihydroxy-3-(3-hydroxy-4-methoxyphenyl)-4H-chromen-4-one
Formula
C16H12O6
Exact mass
300.06339 g/mol
Molecular weight
No weights stored
Structure
Sources
In summary, the chemical pratensein has been analyzed from following sources:
Note that an analysis result in the database may indicate either presence or lack thereof of a chemical in an analyzed sample.
References
- J. Kim, A. Assefa, J. Song, V. Mani, S. Park, S. Lee, K. Lee, D. Kim, and B. Hahn, "Assessment of metabolic profiles in florets of Carthamus species using ultra-performance liquid chromatography-mass spectrometry.," Metabolites , vol. 10 , no. 11 , pp. 440 , DOI: 10.3390/metabo10110440 .
Analysis results
Analysis result 1
STD
True
TLC
False
UV/Vis detector description
Mass spectrometer description
UHPLC-ESI-QTOF-MS, quadrupole time-of-flight
Organism
Carthamus lanatus
L.
wild
dried, frozen
Sample note
The material (Accession Number W6 16791) were obtained from USDA National Plant Germplasm system. The seeds were planted and cultivated in a greenhouse at 18-25 °C located at the National Institute of Agricultural Sciences, Jeonju, Korea. The collecting (by hand) of of florets of early stage samples started approximately 12 weeks after seed planting. These EARLY STAGE flower samples were collected before the beginning of the flowering, when the upper portion of the florets were about to emerge through the bracts. The samples wer snap-frozen using liquid nitrogen, the freeze--dried and stored at -80 ° until further processing. Visually seen, there was not yet much color in flowers, only white and light yellow hues. The leaf shape was lanceolate.
Drying methods
freeze-dried
Dried material storage temperature
-80 °C
Extraction solvents
70 % methanol
Extraction mass/volume-ratio
25 mg/mL
Extraction repeats
5
Extraction time
35 min
Extraction temperature
4 °C
Analysis solvents
70 % methanol
References
J. Kim, A. Assefa, J. Song, V. Mani, S. Park, S. Lee, K. Lee, D. Kim, and B. Hahn, "Assessment of metabolic profiles in florets of Carthamus species using ultra-performance liquid chromatography-mass spectrometry.," Metabolites , vol. 10 , no. 11 , pp. 440 , DOI: 10.3390/metabo10110440 .
