Direct Violet 9
Direct Violet 9
CAS: 6227-14-1
Molecular Formula: C30H23N5Na2O8S2
Direct Violet 9 - Names and Identifiers
| Name | Direct Violet 9 |
| Synonyms | Violet MB Direct Violet 9 Direct purple BK Direct Violet 9 Dinamine Violet MB The purple 1 directly Direct Brilliant Violet B Concorde Direct Violet BK Bitamine Direct Violet MB C.I. Direct Violet 9, disodium salt disodium,(3Z)-7-anilino-3-[[2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]-4-oxonaphthalene-2-sulfonate disodium (3Z)-3-({2-methoxy-5-methyl-4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}hydrazono)-4-oxo-7-(phenylamino)-3,4-dihydronaphthalene-2-sulfonate |
| CAS | 6227-14-1 |
| EINECS | 228-326-0 |
| InChI | InChI=1/C30H25N5O8S2.2Na/c1-18-14-26(27(43-2)17-25(18)33-32-21-8-11-23(12-9-21)44(37,38)39)34-35-29-28(45(40,41)42)16-19-15-22(10-13-24(19)30(29)36)31-20-6-4-3-5-7-20;;/h3-17,31,34H,1-2H3,(H,37,38,39)(H,40,41,42);;/q;2*+1/p-2/b33-32+,35-29+; |
Direct Violet 9 - Physico-chemical Properties
| Molecular Formula | C30H23N5Na2O8S2 |
| Molar Mass | 691.64186 |
| Density | 1.709[at 20℃] |
| Water Solubility | 6.23g/L at 20℃ |
| Vapor Presure | 0Pa at 25℃ |
| Physical and Chemical Properties | Soluble in water red purple, soluble in ethylene glycol ether, ethanol-soluble, insoluble in other organic solvents. The addition of concentrated hydrochloric acid to the aqueous solution produces a purple precipitate; The addition of concentrated sodium hydroxide solution produces a purple precipitate. The dye was Blue Green in concentrated sulfuric acid, and the purple precipitate was produced after dilution. In concentrated nitric acid, it was red brown solution. |
Direct Violet 9 - Reference Information
| LogP | -2.165 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | direct Violet 9 is a direct dye. Direct dyes are dyes that can be heated and boiled in neutral and weakly bonded phase media without the help of mordant, direct dyes are formed by the combination of hydrogen bonds and van der Waals forces between direct dyes and cotton fibers. They are mainly used in fiber, silk, cotton spinning, leather and other industries, and are also used in papermaking and other industries. |
| Use | direct Violet B can be used for dyeing cotton and viscose fiber, with good levelness and high dyeing capacity, however, the staining fastness was poor. Therefore, it is more useful for the coloring of paper. |
| production method | p-aminobenzenesulfonic acid, 2-methoxy-5-methylaniline and N-phenyl J acid are used as raw materials. First, P-aminobenzenesulfonic acid was diazotized and coupled with α-methoxy-5-methylaniline, and then the coupling product was diazotized and coupled with N-phenyl JIC acid to obtain the product. After salting out, filtration, drying, grinding to get the finished product.. |
Last Update：2024-04-09 20:52:54
