| Name | Disperse Red 191 |
| Synonyms | Pink P-RELN Disperse Red 191 Sumiplast Red B 2 Intrasil Pink SRL Disperse Pink SE-RL C.I.Disperse Red 191 |
| CAS | 103657-51-8 |
| Molecular Formula | C22H17NO5 |
| Molar Mass | 375.38 |
| Overview | human beings began to use natural dyes such as Carmine and hematoxylin for dyeing as early as the 18th century. With the emergence of synthetic dyes, dyeing technology has been further developed. Staining is often used in microscopic observation of cells or tissues in order to see the microscopic structures therein. The dyes include acid dyes and basic dyes, etc. Acid dyes such as eosin are suitable for staining cytoplasm, and basic dyes such as hematoxylin are suitable for staining nucleus. Because the bacterial surface is negatively charged, the bacteria are generally stained with a basic dye. |
| apply | disperse red 191(C.I. Discpersered191) used for dyeing and printing of polyester and its blended fabrics, light fastness is better, widely used in high-grade places such as automotive fabrics dyeing, general information on the introduction of 1-amino anthraquinone bromide, the hydrolysate is obtained by condensation with ethylene glycol monophenyl ether. However, in actual production, the quality of the products obtained by this route is often not recognized. |