disodium (6E)-5-{2-[4-(acetylamino)-2-sulfonatophenyl]hydrazino}-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonate
C.I. Acid Red 37
CAS: 6360-07-2
Molecular Formula: C18H17N4NaO8S2
disodium (6E)-5-{2-[4-(acetylamino)-2-sulfonatophenyl]hydrazino}-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonate - Names and Identifiers
| Name | C.I. Acid Red 37 |
| Synonyms | Red BL Acid red BG Acid Fast Red B C.I. Acid Red 37 Acid Fast Red EBL Acid Light Red 2BL Acid Red 37 (C.I.) N-(3-{[(2E)-3-(5-bromo-2-methoxyphenyl)prop-2-enoyl]amino}phenyl)furan-2-carboxamide disodium 5-((4-acetylamino-2-sulphophenyl)azo)-6-amino-4-hydroxynaphthalene-2-disulphonate disodium (6E)-5-{2-[4-(acetylamino)-2-sulfonatophenyl]hydrazino}-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonate |
| CAS | 6360-07-2 |
| EINECS | 228-823-2 |
| InChI | InChI=1/C18H16N4O8S2.2Na/c1-9(23)20-11-3-5-14(16(7-11)32(28,29)30)21-22-18-13(19)4-2-10-6-12(31(25,26)27)8-15(24)17(10)18;;/h2-8,19,21-22H,1H3,(H,20,23)(H,25,26,27)(H,28,29,30);;/q;2*+1/p-2/b19-13+; |
disodium (6E)-5-{2-[4-(acetylamino)-2-sulfonatophenyl]hydrazino}-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonate - Physico-chemical Properties
| Molecular Formula | C18H17N4NaO8S2 |
| Molar Mass | 504.46 |
| Storage Condition | RT, dry, sealed |
| Physical and Chemical Properties | Purple Sauce color powder. Very soluble in water, solubility in water (100 C) for 200g/L. The aqueous solution is cherry red, and has no tendency of aggregation at room temperature. The addition of concentrated hydrochloric acid produces purple sauce color precipitation; The addition of concentrated sodium hydroxide solution is wine red. Slightly soluble in ethanol was purplish red. In concentrated sulfuric acid, it is dark blue red, after dilution, it is dark red to reddish purple; In concentrated nitric acid, it is initially olive color, and quickly turns into Brown; In concentrated hydrochloric acid, it is reddish purple precipitate, which can be dissolved by adding water dilution. |
disodium (6E)-5-{2-[4-(acetylamino)-2-sulfonatophenyl]hydrazino}-6-imino-4-oxo-4,6-dihydronaphthalene-2-sulfonate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Brief introduction | The aqueous solution of acid Red 37 is cherry red, without aggregation tendency at room temperature, and the addition of concentrated hydrochloric acid produces purple sauce color precipitation; it is mainly used for wool, silk, nylon and wool blended dyeing, also used for wool, silk fabric direct printing. |
| Use | acid red BG is mainly used for dyeing wool, silk, nylon and wool blends, also used for wool, direct printing of silk fabrics. Bright color, good levelness. When used in the same bath dyeing of wool and other fibers, the color of nylon is similar to that of wool, the color of silk is stained, and the color of cellulose fiber is not stained. With acid blue B, acid yellow 2G composed of computer color three primary colors, can be combined into a variety of bright colors, can also be combined with other dyes, to adjust the color light. It can also be used for leather coloring. used for dyeing wool, silk and nylon |
| production method | with 2, 5-diaminobenzenesulfonic acid and gamma acid as raw materials, 5-diaminobenzenesulfonic acid is reacted with acetic anhydride, which is then diazotized and coupled with gamma acid to give the product. The product was obtained by salting out, filtration, drying and pulverization.. |
Last Update：2024-04-09 21:04:16
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Product Name: disodium 5-((4-acetylamino-2-sulphophenyl)azo)-6-amino-4-hydroxynaphthalene-2-disulphonate Visit Supplier Webpage Request for quotation
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