Chemical fact sheet: 2-(1H-indol-3-ylmethyldene)-1,2-dihydro-3H-indol-3-one

2-(1H-indol-3-ylmethyldene)-1,2-dihydro-3H-indol-3-one

Basics

Category
Indolics & indole alkaloid derivatives
IUPAC-name
(E)-2-((1H-indol-2-yl)methylene)indolin-3-one
Formula
No formula stored
Exact mass
260.09500 g/mol
Molecular weight
No weights stored
Structure

Sources

In summary, the chemical 2-(1H-indol-3-ylmethyldene)-1,2-dihydro-3H-indol-3-one has been analyzed from following sources:

Isatis indigotina
1st

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

References

  1. M. Chen, L. Gan, S. Lin, X. Wang, L. Li, Y. Li, C. Zhu, Y. Wang, B. Jiang, J. Jiang, Y. Yang, and J. Shi, "Alkaloids from the root of Isatis indigotina.," Journal of Natural Products , vol. 75 , no. 6 , pp. 1167−1176 , DOI: 10.1021/np3002833 .

Analysis results

Analysis result 1

Detection technique Values Units
UV/Vis 205
271
389
489 		nm
[M⁺ H]⁺ 261.10160 m/z
M⁺ 260 m/z
STD
False
TLC
False
UV/Vis detector description
UV
Mass spectrometer description
ESI-MS, HR-EIMS
Organism
Isatis indigotina
wild
dried, pulverized
Collection dates
2009-12
Sample note
Plant identity was verified by Mr. Lin Ma (Institute of Materia Medica, Beijing 100050, China). A voucher specimen (No. ID-S-2385) was deposited at the herbarium of the Department of Medicinal Plants, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.NOTE. There are conflicting views on the taxonomy of I. tinctoria (European woad) and I. indigotica (Chinese woad). I. indigotina was described for the first time by Fortune in 1846, and initially considered as a distinct species. Afterward, some taxonomists have classified it as a variety of I. tinctoria. Nowadays, I. indigotina is considered as a synonym of I. tinctoria [e.g. The Plant List, IPNI (International Plant Name Index), Tropicos]. (Speranzo et al. 2020). In this database, we use the names similarly as the authors.
Drying methods
air-dried
Extraction solvents
water
Extraction mass/volume-ratio
33.3 mg/mL
Extraction repeats
3
Extraction time
3 h
Extract drying method
evaporation under reduced pressure
Detection note
(+)-HR-ESIMS m/z 261.1016; EIMS m/z 260 [M]+; red powder
References

M. Chen, L. Gan, S. Lin, X. Wang, L. Li, Y. Li, C. Zhu, Y. Wang, B. Jiang, J. Jiang, Y. Yang, and J. Shi, "Alkaloids from the root of Isatis indigotina.," Journal of Natural Products , vol. 75 , no. 6 , pp. 1167−1176 , DOI: 10.1021/np3002833 .