ACID RED 4
- CAS No.
- 5858-39-9
- Chemical Name:
- ACID RED 4
- Synonyms
- Pink B;CI 14710;AZO EOSIN;ACID RED 4;Azo Eosine G;C.I. Acid Red 4;Acid Red 4 (C.I.);acidred4(c.i.14710);AZOEOSIN C.I. NO. 14710;Metamine Fast Acid Red N
- CBNumber:
- CB5169843
- Molecular Formula:
- C17H13N2NaO5S
- Molecular Weight:
- 380.35
- MDL Number:
- MFCD00003939
- MOL File:
- 5858-39-9.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| ACID RED 4 (FAST ACID RED E C.I. 14710) AldrichCPR | R324272 | 1 unit | $197 |
| ACID RED 4 (FAST ACID RED E C.I. 14710) AldrichCPR | R324272 | 1G | $179 |
| Acid Red 4 | 44621 | 1g | $52 |
| Acid Red 4 | 44621 | 5g | $143 |
| Acid Red 4 | 44621 | 10g | $260 |
| More product size | |||
| 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) |
ACID RED 4 price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | R324272 | ACID RED 4 (FAST ACID RED E C.I. 14710) AldrichCPR | 5858-39-9 | 1 unit | $197 | 2026-04-30 | Buy |
| Sigma-Aldrich | R324272 | ACID RED 4 (FAST ACID RED E C.I. 14710) AldrichCPR | 5858-39-9 | 1G | $179 | 2024-03-01 | Buy |
| Cayman Chemical | 44621 | Acid Red 4 | 5858-39-9 | 1g | $52 | 2026-04-30 | Buy |
| Cayman Chemical | 44621 | Acid Red 4 | 5858-39-9 | 5g | $143 | 2026-04-30 | Buy |
| Cayman Chemical | 44621 | Acid Red 4 | 5858-39-9 | 10g | $260 | 2026-04-30 | Buy |
ACID RED 4 Chemical Properties,Uses,Production
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
ACID RED 4 Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32466 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| AFINE CHEMICALS LIMITED | +86-0571-85134551 | sales@afinechem.com | China | 15073 | 58 |
| HANGZHOU LEAP CHEM CO., LTD. | +86-571-87711850 | market18@leapchem.com | China | 43333 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43414 | 58 |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53803 | 58 |
| Mainchem Co., Ltd. | -- | sarah@mainchem.com | China | 6545 | 58 |
| The future of Shanghai Industrial Co., Ltd. | 021-61552785 | sales@shshiji.com | China | 9546 | 55 |
| Shanghai JONLN Reagent Co., Ltd. | 400-0066400 13621662912 | 422131432@qq.com | China | 9979 | 55 |




