Indigo Carmine
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Indigo carmine. Manufacturer exporter of 3 amino 4 chlorobenzoic acid4 aminotoluene 2 sulphonanilide cas no. Indigo dye is an organic compound with a distinctive blue color see indigo. Historically indigo was a natural dye extracted from the leaves of certain plants and. Brief description of indigo.
Indigo was quite often used in european easel painting since the middle ages and written evidence also points to its use by the romans. Indigo definition a blue dye obtained from various plants especially of the genus indigofera or manufactured synthetically. Brief description of carmine lake. One of the delights of autumn is to walk through the woodlands and feast your eyes upon their coloring.
For thousands of years. Recent examples on the web. The carmine red of the massive steel front door was chosen from le corbusiers color palette. Sarah medford wsj daniel and.