ACID RED 4
ACID RED 4 Basic information
- Product Name:
- ACID RED 4
- Synonyms:
-
- 1-Naphthalenesulfonicacid,4-hydroxy-3-[(2-methoxyphenyl)azo]-,monosodiumsalt
- 4-hydroxy-3-[(2-methoxyphenyl)azo]-1-naphthalenesulfonicacimonosodiumsal
- acidred4(c.i.14710)
- ACID RED 4
- CI 14710
- AZO EOSIN
- Acid Red 4 (C.I.)
- C.I. Acid Red 4
- CAS:
- 5858-39-9
- MF:
- C17H13N2NaO5S
- MW:
- 380.35
- EINECS:
- 227-490-0
- Product Categories:
-
- Organics
- Mol File:
- 5858-39-9.mol
ACID RED 4 Chemical Properties
- Melting point:
- >210°C(dec.)
- storage temp.
- Amber Vial, Refrigerator, Under inert atmosphere
- solubility
- Methanol (Slightly)
- form
- Solid
- color
- Red
- EPA Substance Registry System
- C.I. Acid Red 4, monosodium salt (5858-39-9)
MSDS
- Language:English Provider:SigmaAldrich
ACID RED 4 Usage And Synthesis
Uses
Acid Red 4 is an azo dye. The wavelength of maximum absorbance for Acid Red 4 is 508 nm[1].
Definition
ChEBI: An organic sodium salt having 4-hydroxy-3-[(2-methoxyphenyl)diazenyl]naphthalene-1-sulfonate as the counterion.
Preparation
p-Anisidine diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.
Properties and Applications
red. Soluble in water for red, soluble in acetone, slightly soluble in ethanol (orange) and toluene. The strong sulfuric acid to red light purple, diluted red for quality. In water solution to join strong hydrochloric acid have dark red precipitate; Add nitric acid have blue-ray red precipitation, first into a brown, then yellow; Add thick sodium hydroxide solution color change.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5 | 2-3 | 2-3 | 2-3 | ||||
| AATCC | 4 | 1 | 3 | 1 | 1 | |||
References
[1] M F Coughlin, et al. Degradation of azo dyes containing aminonaphthol by Sphingomonas sp strain 1CX. J Ind Microbiol Biotechnol. 1999 Oct;23(4-5):341-346. DOI:10.1038/sj.jim.2900746
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ACID RED 4(5858-39-9)Related Product Information
- 4-HYDROXYBENZENESULFONIC ACID SODIUM SALT HYDRATE
- 1-NAPHTHOL-4-SULFONIC ACID SODIUM SALT
- Direct Blue 151
- Azobenzene
- Naphthalene-1-sulfonic acid hydrate, 98%
- 4-Hydroxybenzenesulfonic acid
- PHENOLSULFONIC ACID
- ACID RED 4
- 1-NAPHTHALENETHIOL
- 2-Naphthylamine
- o-Anisidine
- BENZOAZURINE
- 1-Naphthol
- 1-Naphthalenesulfonic acid
- 4-HYDROXYBENZENESULFONIC ACID SODIUM SALT DIHYDRATE
- 4-Mercaptophenol
- 1-Naphthol-4-sulfonic acid
- 2,2'-DIHYDROXYAZOBENZENE