JANUS BLACK
- CAS NO.：4443-99-6
- Empirical Formula: C28H26ClN5O
- Molecular Weight: 483.99
- MDL number: MFCD00050077
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 02:53:36
What is JANUS BLACK?
The Uses of JANUS BLACK
Janus Black was used for the dyeing of polyacrylonitrile fibers.
Preparation
N, N-diethyl-phenosafranine diazo, coupled with phenol.
Properties and Applications
green and black. Soluble in water for dark green light blue, soluble in ethanol for red light blue. The strong sulfuric acid for green, diluted for purple, and a green precipitation. The dye solution to join hydrochloric acid soluble green precipitate generated; With strong sodium hydroxide solution generation red precipitate.
| Standard | Light Fastness | Persperation Fastness | Ironing Fastness | Soaping | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| AATCC | 6 | 5 | 5 | 3-4 | 5 | 5 | |
Forms and nomenclature
Janus Black R 17 is formed by coupling diazotized diethylphenosafranine to phenol.
Properties of JANUS BLACK
| Melting point: | 200 °C (dec.)(lit.) |
Safety information for JANUS BLACK
Computed Descriptors for JANUS BLACK
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