AZOFUCHSIN
Synonym(s):5-Amino-4-hydroxy-3-phenylazo-2,7-naphthalenedisulfonic acid disodium salt;Acid Red 33 disodium salt;Disodium 5-amino-4-hydroxy-3-(phenylazo)-naphthalene-2,7-disulfonate;Food Red 12
- CAS NO.:3567-66-6
- Empirical Formula: C16H11N3Na2O7S2
- Molecular Weight: 467.38
- MDL number: MFCD00071877
- EINECS: 222-656-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:27:06
What is AZOFUCHSIN?
Chemical properties
solid
Preparation
aniline diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in alkaline conditions coupled.
Flammability and Explosibility
Non flammable
Properties and Applications
red. Soluble in water, slightly soluble in ethanol for scarlet. For the strong sulfuric acid in scarlet, diluted for orange red; In nitric acid solution for palm chestnut. In water solution to join strong hydrochloric acid for red; Add thick sodium hydroxide solution for red light brown; Join rare sodium hydroxide solution for brick red.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 2 | 2-3 | 2 | 2 | 2-3 | |||
| AATCC | 2-3 | 2-3 | 1 | 1 | 4 | |||
Properties of AZOFUCHSIN
| Boiling point: | 717.34℃[at 101 325 Pa] |
| Density | 0.488[at 20℃] |
| Colour Index | 17200 |
| form | neat |
| Water Solubility | 54.45g/L at 26℃ |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| EPA Substance Registry System | C.I. Acid Red 33, disodium salt (3567-66-6) |
Safety information for AZOFUCHSIN
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for AZOFUCHSIN
AZOFUCHSIN manufacturer
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