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HomeProduct name listDisperse Red 1

Disperse Red 1

Synonym(s):N-Ethyl-N-(2-hydroxyethyl)-4-(4-nitrophenylazo)aniline

  • CAS NO.:2872-52-8
  • Empirical Formula: C16H18N4O3
  • Molecular Weight: 314.34
  • MDL number: MFCD00007312
  • EINECS: 220-704-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-06 15:28:16
Disperse Red 1 Structural

What is Disperse Red 1?

Chemical properties

Dark red powder

The Uses of Disperse Red 1

Disperse Red 1 is an azo disperse dye which is water insoluble. Disperse Red 1 can be used to dye polyester and acetate fibers. Dyes and metabolites, Environmental Testing.

The Uses of Disperse Red 1

Disperse orange 3 is used as a dye in nylon and polyester; stocking dye.

Definition

ChEBI: An azo dye with a structure consisting of nitrobenzene substituted on the 4-position of the phenyl group with a 4-[N-ethyl-N-(2-hydroxyethyl)]phenylazo group.

Preparation

4-Nitrobenzenamine diazo, and N-ethyl-N-hydroxyethylaniline?coupling

General Description

Disperse Red 1 (DR1) is a non-linear optical (NLO) material which is a chromophore used as an azobenzene dye. It can form a dipole network that can enhance the electro-optic effect of the non-linear components and can also improve the photorefractive effect.

Properties and Applications

Red: dark red powder, melting point 160 ℃ : insoluble in water, but soluble in ethanol, acetone and benzene. The strong sulfuric acid for yellow brown, diluted to deep crimson red; In nitric acid solution for red; In strong hydrochloric acid also to red solution; In the thick of sodium hydroxide solution for the red light brown. Used for polyester and their blended fabric dyeing and printing, also applies to acrylic, polyamide, vinegar fiber, three vinegar fiber dyeing. Used in high temperature and high pressure method and polyester dyeing of carrier. Dyeing rate medium, not sensitive to temperature, have good levelness and lifting force. Can also be used for the wool, plastic, fur color.

Standard Ironing Fastness Light Fastness Persperation Fastness Washing Fastness
Fading Stain Fading Stain Fading Stain
ISO 4 3 4-5 5 5 5 5

Properties of Disperse Red 1

Melting point: 160-162 °C (lit.)
Boiling point: 454.02°C (rough estimate)
Density  1.1523 (rough estimate)
refractive index  1.6000 (estimate)
storage temp.  Refrigerator
solubility  DMSO (Slightly, Sonicated), Methanol (Slightly, Sonicated)
Colour Index  11110
pka 14.55±0.10(Predicted)
form  Solid
form  neat
color  Dark Red to Very Dark Red
Water Solubility  169.7ug/L(25 ºC)
BRN  5353614
CAS DataBase Reference 2872-52-8(CAS DataBase Reference)
NIST Chemistry Reference Ethanol, 2-[ethyl[4-[(4-nitrophenyl)azo]phenyl]amino]-(2872-52-8)
EPA Substance Registry System C.I. Disperse Red 1 (2872-52-8)

Safety information for Disperse Red 1

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H317:Sensitisation, Skin
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.

Computed Descriptors for Disperse Red 1

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