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meta ester-dye intermediates-Synthetic vinyl sulfone dye
dye intermediates/N-Ethyl Metabase Ester used for the synthesis of KN type and M-type reactive dyes
Name:meta-ester, N-Ethyl Metabase Ester
MF:C8H11NO6S2
Molecular weight:281.3
Appearance: gray powder. Light white to red tide products
Application:
Mainly used for the synthesis of KN type and M-type reactive dyes.Nitrobenzene sulfonyl, hydroxyethyl, restore,esterification.
Transportation:
It should be handled care, keep from fire, sunshine, moisture, Beware of foreign body contamination .
NO. | ITEM | First class | Qualified |
1. | APPEARANCE | Pale white and red tide products | |
2. | Total Amino- Value {m-(B-sulfato ethyl sulfon yl) anilin} % | ≥80.00 | ≥75.00 |
3. | m-(B-sulfato ethyl sulfonyl) anilin (HPLC) mass fraction % | ≥97.00 | ≥95.00 |
4. | m-(B-sulfato ethyl) anilin (HPLC) mass fraction %% | ≤1.00 | ≤1.50 |
5 | Total acidity % | ≤20.00 | ≤25.00 |
6 | Water- insoluble % | ≤0.10 | ≤0.20 |