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Red HE-3B or Reactive Red 120 has a formula of C 44 H 30 Cl 2 N 14 O 20 S 6 and a molecular weight of 1338.1 g/mol, containing two monochlorotriazine rings.
In a reactive dye, a chromophore (an atom or group whose presence is responsible for the colour of a compound) contains a substituent that reacts with the substrate. Reactive dyes have good fastness properties owing to the covalent bonding that occurs during dyeing. Reactive dyeing is the most important method for coloring cellulose fibers.
Vinyl sulfone dyes are reactive dyes comprising a vinyl sulfone group as reactive group (a fiber-bonding site of the reactive dye, "reactive hook"). Due to the relatively high reactivity of the vinyl sulfone group with water (residual moisture, air humidity), it is present in many commercial products in a protected form.
Acid Red 13: Fast red E Acid red 13 16045 azo 2302-96-7: Acid red 25 Acid red 25 16050 azo 5858-93-5: Acid red 88: Fast red A Acid red 88 15620 azo 1658-56-6: Acid Red 95 Erythrosine Y Diiodofluorescein Acid red 95 45425 xanthene 33239-19-9: Acridine orange: Euchrysine Basic Orange 14 46005 acridine: 494-38-2: Acridine red 3B 45000 pyronin 2465 ...
Anthraquinone dyes include red insect dyes derived from scale insects such as carminic acid, kermesic acid, and laccaic acids. The colorant carmine with the main component carminic acid is used, for example, as an approved food colorant E 120. [4] The traditional methods for carmine production are labour, land, and insect-intensive.
These are moderately reactive. Although named as an ionic "chloryl" compound, chloryl fluoride is more a covalent compound than an ionic compound of fluoride and chloryl cation. The second category features red-colored compounds that are highly reactive. These include chloryl fluorosulfate, ClO 2 SO 3 F, and dichloryl trisulfate, (ClO 2) 2 (S 3 ...
Erythrosine, also known as E127 and Red No. 3, is an organoiodine compound, specifically a derivative of fluorone. It is a red-pink dye used for food coloring, cosmetics, hair coloring, pet products, and diverse industrial colorings. [2] [3] It is the disodium salt of 2,4,5,7-tetraiodofluorescein. [2]
A solvent dye is a dye soluble in organic solvents.It is usually used as a solution in an organic solvent. [1]Solvent dyes are used to color organic solvents, hydrocarbon fuels, waxes, lubricants, plastics, and other hydrocarbon-based nonpolar materials.