Identification of natural dyes extracted from archaeological textiles using liquid chromatography with mass spectrometry detection was written by Kohout, D.;Videna, I.;Chudoba, J.;Brezinova, H.. And the article was included in Chemicke Listy in 2016.Category: benzofurans The following contents are mentioned in the article:
All the three types of natural dyes under investigation – direct, vat and mordant – were extracted by a solvent mixture containing methanol, dichloromethane, and formic acid in a ratio of 70:25:5. For the identification, highresoln. mass spectrometry (HR-LC-MS) was used. The best results were achieved using neg. electrospray ionization. In medieval textiles exploration from the New Town of Prague, dyestuffs from madder, woad, crimson coccids, weld, buckthorn, brazilwood, and tannins from oak galls were found. HR-LC-MS analyses confirmed the usage of various combinations of dyestuffs leading to the formation of new types of colors. The most frequent combinations were the fusion of red madder with blue woad, as well as combinations of madder with yellow weld and madder with crimson coccids. This study involved multiple reactions and reactants, such as 1,8,9-Trihydroxy-3-methoxy-6H-benzofuro[3,2-c]chromen-6-one (cas: 524-12-9Category: benzofurans).
1,8,9-Trihydroxy-3-methoxy-6H-benzofuro[3,2-c]chromen-6-one (cas: 524-12-9) belongs to benzofurans derivatives. Benzofuran is the “”parent”” of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antiviral, antimicrobial, antitumor, anti-inflammatory.Category: benzofurans
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem