1-[(2,5-dimethoxyphenyl)azo]-2-naphthol
![1-[(2,5-dimethoxyphenyl)azo]-2-naphthol Structure](CAS/GIF/6358-53-8.gif)
- CAS No.
- 6358-53-8
- Chemical Name:
- 1-[(2,5-dimethoxyphenyl)azo]-2-naphthol
- Synonyms
- C.I.12156;CITRUSRED;CITRUSRED2;CITRUSREDNO.2;Solvent Red 80.;ditrus red 2-D6;C.I.Solvent Red 80;Blueberry red pigment;C.I.Solvent Red 80:C.I.12156;Citrus Red 2 in Acetonitrile
- CBNumber:
- CB4936181
- Molecular Formula:
- C18H16N2O3
- Molecular Weight:
- 308.33
- MOL File:
- 6358-53-8.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/1/27 9:38:02
| Melting point | 155-157° |
|---|---|
| Boiling point | 448.73°C (rough estimate) |
| Density | 1.2510 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| storage temp. | 2-8°C |
| pka | 13.61±0.50(Predicted) |
| Colour Index | 12156 |
| BRN | 4510811 |
| LogP | 3.129 (est) |
| IARC | 2B (Vol. 8, Sup 7) 1987 |
| EPA Substance Registry System | Citrus Red No. 2 (6358-53-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS08 |
|---|---|
| Signal word | Warning |
| Hazard statements | H351 |
| Precautionary statements | P281 |
| Hazard Codes | Xn |
| Risk Statements | 40 |
| Safety Statements | 45 |
| WGK Germany | 3 |
| RTECS | QL3675000 |
| Hazardous Substances Data | 6358-53-8(Hazardous Substances Data) |
| Toxicity | citrus red is a color used for coloring the skin of mature oranges. This compound has been described as being carcinogenic. |
1-[(2,5-dimethoxyphenyl)azo]-2-naphthol Chemical Properties,Uses,Production
Uses
To color orange skins.
Preparation
2,5-Dimethoxyaniline diazotization, and Naphthalen-2-ol coupling.
General Description
Orange to yellow solid or dark red powder.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
1-[(2,5-dimethoxyphenyl)azo]-2-naphthol is an azo compound. Toxic gases are formed by mixing compounds containing azo groups with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Hazard
Possible carcinogen.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition it emits toxic fumes of NOx.
Fire Hazard
Flash point data for 1-[(2,5-dimethoxyphenyl)azo]-2-naphthol are not available. 1-[(2,5-dimethoxyphenyl)azo]-2-naphthol is probably combustible.
Safety Profile
Confirmed carcinogen with experimental carcinogenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx
1-[(2,5-dimethoxyphenyl)azo]-2-naphthol Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569262 +86-15003564040 | China | 3254 | 58 | Inquiry |
| Shandong Zhishang New Material Co., Ltd. | +8617653113209 | China | 3049 | 58 | Inquiry |
| LEAP CHEM CO., LTD. | +86-852-30606658 | China | 24727 | 58 | Inquiry |
| Hangzhou MolCore BioPharmatech Co.,Ltd. | +86-057181025280; +8617767106207 | China | 49734 | 58 | Inquiry |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +8617705817739 | China | 53881 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39894 | 58 | Inquiry |
| Shanghai Champ Biopharmaceuticals Co., Ltd. | 021-61537865 13585780846 | China | 360 | 58 | Inquiry |
| Hubei Jusheng Technology Co.,Ltd | 027-59599241 18871490274 | China | 9872 | 58 | Inquiry |
| Hangzhou Bingochem Co., Ltd. | 0571-8512-5372 | China | 21669 | 58 | Inquiry |
| Hebei Jiuxing Chemical Products Co., Ltd | 13503103636 13503103636 | China | 617 | 58 | Inquiry |