3-Amino-4-Methoxy Benzanilide(Red KD Base) (DB-40)
The red KD base, 3-amino-4-methoxy benzanilide, produced by our works, is made from 3-niro-4-methoxy benzoic acid by processes of condensation with ammonia and reduction. It is a developer with higher fastness among ice dyestuffs and mainly used for printing of cotton, staple fibre and yarn of ramie, flax, etc. In the fields of dyeing, manufacturing of organic pigments, coloring of printing ink and coating printing-paste, it also finds application.
Stru ctural Formula:
Usual name: Red KD Base (DB-40)
Molecular formula: C14H14O2N2
Molecular weight: 242
Quality Standards of 3-Amino-4-Methoxy Benzanilide:
|
|
Specification |
| Appearance |
extreme light greyish white powder |
| primary melting point of the dried |
≥154°C |
| content of 3-amino-4-methoxybenzamide |
≥99% |
| Insoluble matter in hydrochloric acid |
≤0.1% |
| Shade and strength when coupling with Naphthol As on cotton fibre |
similar to the standard |
| Percentage of screenings(80 mesh) |
≤0.5% |
|
