C.I. Acid Blue 9
Food Blue 2
CAS: 2650-18-2
Molecular Formula: C37H39N3O9S3
C.I. Acid Blue 9 - Names and Identifiers
| Name | Food Blue 2 |
| Synonyms | E133 C.I. 42090 Acid blue 9 Food Blue 2 CI NO 42090 Acid Blue EA ERIOGLAUCINE ERIOGLAUCIN A ERIOGLAUCINE A C.I.Acid Blue 9 C.I. Acid Blue 9 C.I. Direct Brown 78 INTRACID PURE BLUE L LAKE BRILLIANT BLUE FCF ERIOGLAUCINE SODIUM SALT C.I. Acid Blue 9, diammonium salt C.I. Direct Brown 78, Diammonium Salt C.I. Acid Blue 9, diammonium salt (8CI) N-{(1Z,4Z)-4-[{4-[ethyl(3-sulfobenzyl)amino]phenyl}(2-sulfophenyl)methylidene]cyclohexa-2,5-dien-1-ylidene}-N-(3-sulfobenzyl)ethanaminium diammonium 2-[(Z)-{4-[ethyl(3-sulfonatobenzyl)amino]phenyl}{(4Z)-4-[ethyl(3-sulfonatobenzyl)iminio]cyclohexa-2,5-dien-1-ylidene}methyl]benzenesulfonate |
| CAS | 2650-18-2 |
| EINECS | 220-168-0 |
| InChI | InChI=1/C37H36N2O9S3/c1-3-38(25-27-9-7-11-33(23-27)49(40,41)42)31-19-15-29(16-20-31)37(35-13-5-6-14-36(35)51(46,47)48)30-17-21-32(22-18-30)39(4-2)26-28-10-8-12-34(24-28)50(43,44)45/h5-24H,3-4,25-26H2,1-2H3,(H2-,40,41,42,43,44,45,46,47,48)/p+1 |
C.I. Acid Blue 9 - Physico-chemical Properties
| Molecular Formula | C37H39N3O9S3 |
| Molar Mass | 765.91 |
| Density | 1.1666 (rough estimate) |
| Melting Point | 283°C (dec.)(lit.) |
| Water Solubility | 1000g/L at 24.3℃ |
| Solubility | DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Solid |
| Color | Dark Blue to Very Dark Purple |
| Storage Condition | Amber Vial, Refrigerator |
| Stability | Light Sensitive |
| Refractive Index | 1.6000 (estimate) |
| Physical and Chemical Properties | Blue-violet powder. Soluble in water, in water solubility (90 deg C) for 50g/L, aqueous solution is green blue, after adding sodium hydroxide is almost colorless, accompanied by deep purple precipitation. Soluble in ethanol. In concentrated sulfuric acid for Orange, diluted light yellow. When dyeing sensitive to copper and iron ions, affect the color light. |
| Use | Suitable for dyeing and printing of silk, wool and nylon |
C.I. Acid Blue 9 - Risk and Safety
| WGK Germany | 3 |
| RTECS | BQ4725000 |
| Toxicity | LDLo intravenous in human: 33ug/kg |
C.I. Acid Blue 9 - Reference Information
| LogP | -3 at 23℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | acid blue FG is used for dyeing wool, silk, nylon and wool blended fabrics and direct printing of wool and silk fabrics. Bright color and good levelness. When used for dyeing wool and other fibers in the same bath, silk is dyed, nylon is stained seriously, acetate fiber and cellulose fiber are slightly stained. This product is also used as a food dye and organic pigment. It can also be used for coloring leather, paper, etc. suitable for dyeing and printing of silk, wool and nylon |
| Production method | Using N-ethyl-N-m-sulfonic acid benzyl aniline and o-sulfonic acid benzaldehyde as raw materials, first The two are condensed under acidic conditions, diluted and neutralized, and oxidized with potassium dichromate to obtain the product. The finished product is obtained by filtration, salting out, separation, drying and crushing.. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:07
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Product Name: Acid Blue 9 Visit Supplier Webpage Request for quotationCAS: 2650-18-2
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Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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