Acid Orange 56
- CAS NO.：6470-20-8
- Empirical Formula: C32H22N6Na2O8S2
- Molecular Weight: 728.66202
- MDL number: MFCD00137510
- EINECS: 229-294-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Acid Orange 56?
Preparation
2,2′-Disulfo-4,4,diaminobibenzene double nitriding, respectively, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one and Naphthalen-2-ol coupling.
Properties and Applications
red light orange. Soluble in water for palm orange, soluble in ethanol for gold orange: the strong sulfuric acid for blood-red, diluted for orange brown. The dye solution to join strong hydrochloric acid have orange brown precipitation; Add thick sodium hydroxide solution for orange brown. Used for wool, silk and fiber dyeing and printing directly, also used for paper coating and leather shading.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 4 | 3-4 | 4 | 2 | 4-5 | 4-5 | |
| AATCC | 4 | 3-4 | 3-4 | 3 | 1 | 3-4 | 3-4 | |
Properties of Acid Orange 56
Safety information for Acid Orange 56
Computed Descriptors for Acid Orange 56
Acid Orange 56 manufacturer
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