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Reactive Red 180

Reactive Red 180 structure

CAS No:
72828-03-6
Formula:
C29H23N3O17S5.4Na
Chemical Name:
Reactive Red 180
Synonyms:
2,7-Naphthalenedisulfonic acid,5-(benzoylamino)-4-hydroxy-3-[2-[1-sulfo-6-[[2-(sulfooxy)ethyl]sulfonyl]-2-naphthalenyl]diazenyl]-,sodium salt (1:4);2,7-Naphthalenedisulfonic acid,5-(benzoylamino)-4-hydroxy-3-[[1-sulfo-6-[[2-(sulfooxy)ethyl]sulfonyl]-2-naphthalenyl]azo]-,tetrasodium salt;C.I. 181055;C.I. Reactive Red 180;Remazol Brilliant Red F 3B;Diamira Brilliant Red F 3B;Reactive Red 180;Pro-Jet Magenta 1T;Remazol Red F 3B;Duasyn Brilliant Red F 3B-SF-VP218;Brilliant Red F 3B-SF;Reactive Red 3BS;Reactive Red KN 3B;Duasyn Brillant Red F 3B-SF Liquid;Keyreact Red F 3B;Keyreact Red F 3B Liquid;Brilliant Red F 3B;72828-03-6;434335-15-6
Categories:
Dyes and Pigments > Dye

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Description

Solid

Reactive Red 180 Basic Attributes

Molecular Weight：

369.41762

Exact Mass：

369.18

Characteristics

PSA：

118

XLogP3：

2.5

Melting Point：

215 - 217 °C

Water Solubility：

Dimethylsulfoxide approimately 100 (mg/mL)

Safety Information

Stability/Shelf Life：

Bulk: A sample stored at 60 °C for 30 days showed no decomposition (UV, HPLC). Solution: A solution in 5% methanol (0.5 mg/mL) showed no decomposition after 9 days (UV). A solution in 5% dimethylacetamide /pH 4 acetate buffer showed no decomposition after 48 hours(HPLC).

Reactive Red 180 Use and Manufacturing

Methods of Manufacturing

Using 2-naphthylamine-6-(β-sulfate ethylsulfone)-1-sulfonic acid, H acid and benzoyl chloride as raw materials, first condense benzoyl chloride with H acid, and then condense 2-naphthylamine- 6-(β-sulfate ethyl sulfone)-1-sulfonic acid is diazotized and coupled with the aforementioned condensation product to obtain a product. After salting out, filtering and drying, the finished product is obtained.

Uses

Reactive Red KN-3B is used for the printing and dyeing of fiber fibers, wool and silk. It is suitable for a variety of dyeing methods, such as exhaust dyeing method, pad dyeing method and cold rolling pile method. It is also used for printing, especially for two-phase printing. It has excellent discharge performance and good dyeing fastness. Usually bright blue and red.