Reactive Red(p) P3B
Textile Dyestuffs
C.I.Reactive Red 45
Molecular Structure: Single azo class
Molecular Formula:C27H19ClN7Na3O10S3
Molecular Weight: 802.10
CAS Registry Number:12226-22-1/70210-46-7
Manufacturing Methods : 2-Amino-5-methylbenzenesulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and then and 2,4,6-Trichloro-1,3,5-triazine condensation, again with N-methylbenzenaminecondensation.
Properties and Applications: colourful red blue light.
| Standard | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 5 | 4 | 4(Alkali) | 4-5 | 4-5 | 4-5 | |