Mordant Orange 3
- CAS NO.：6359-86-0
- Empirical Formula: C16H12N5NaO7S
- Molecular Weight: 441.35055
- MDL number: MFCD00230630
- EINECS: 228-811-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:22:04
What is Mordant Orange 3?
Preparation
2-Amino-4-nitrophenol diazotization, and 4-(3-Methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling.
Properties and Applications
dark red light orange. Soluble in water for yellow orange. In concentrated sulfuric acid to yellow, to orange after diluted solution, have yellow precipitation; In concentrated sodium hydroxide solution for orange. Mainly used in color matching for top, wool, leather and nylon dyeing, has higher dyeing fastness.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 7 | 4 | 5 | 4-5 | 5 | |
Properties of Mordant Orange 3
| EPA Substance Registry System | Benzenesulfonic acid, 4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-, monosodium salt (6359-86-0) |
Safety information for Mordant Orange 3
Computed Descriptors for Mordant Orange 3
Mordant Orange 3 manufacturer
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