C.I. Direct Orange 31
- CAS NO.：6420-03-7
- Empirical Formula: C31H27N6NaO7S
- Molecular Weight: 650.64
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:59:38
What is C.I. Direct Orange 31?
Preparation
3,3′-Dimethylbenzidine?double nitriding, respectively with?2-Hydroxybenzoic acid and 4-(3-Methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling.
Properties and Applications
red light orange. Used for cellulose fiber dyeing, good levelness, white the gender is good.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 3-4 | 3 | 2-3 | 3 | ||
Safety information for C.I. Direct Orange 31
New Products
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