Methods: Using luteolin as the raw material, acetyl, propionyl, and butyryl groups are introduced into the molecular structure ... its phenolic hydroxyl groups (5). Figure 1. Structural modification ...

Four qualities that elevate this paper from good to great in style are: its structure, captivity, soulfulness, and precision. Structured Outline, Paragraphs, and Sentences Structurally ...

Stunning new imagery and other data from NASA’s James Webb Space Telescope (JWST) reveal new details about a pair of enigmatic infrared ring structures accompanying a distant planetary nebula. The new ...

The most common phenolic compounds found in S ... leaves and culms of Saccharum officinarum led to the isolation of eleven compounds belonging to different classes. Their structures were identified ...

A five-membered aromatic bismuth ring, prepared by researchers in Germany ... in the chemistry of all-metal aromatic molecules and defines a new era for aromatic compounds,’ they write.

The centerpiece of the 2025 Osaka Expo, the Grand Ring, was recognized by Guinness World Records as the world's largest wooden structure on Tuesday. An award ceremony was held at the venue ...

This assay was used to guide the fractionation of this extract and allowed the isolation of four compounds: the new naphthoquinone eleutherinone[8-methoxy-1-methyl-1,3-dihydro-naphtho(2,3-c)furan-4,9 ...

The stem and leaves of Berchemia lineata (L.) DC. were purchased from Nanning, Guangxi Zhuang autonomous Region, P. R. China, and were identified by Prof. Hongli Teng, Guangxi Zhuang Medicine ...