| Identification | |
| Name: | Acid Blue 9 |
| Synonyms: | A.F. Blue No. 1;AF Blue No. 1;Acid Blue;AE-SF;Acilan Turquoise Blue AE;Alphazurine FGND;Bleu Brilliant FCF;C.I. 42090;C.I. Acid Blue 9, diammonium salt;C.I. Direct Brown 78, Diammonium Salt;CI 42090;CI Acid Blue 9, diammonium salt;CI Direct Brown 78, diammonium salt;Calcocid Blue EG;Caswell No. 007A;EPA Pesticide Chemical Code 110301;Erioglaucine (Biological Stain);Erioglaucine A;Fenazo Blue XR;HSDB 5890;Japan Blue 205;Kiton Pure Blue L;NSC 4318;Neptune Blue BRA;Concentration; |
| CAS: | 2650-18-2 |
| EINECS: | 220-168-0 |
| Molecular Formula: | C37H34N2Na2O9S3 |
| Molecular Weight: | 782.94578 |
| InChI: | InChI=1S/C37H36N2O9S3.2H3N/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);2*1H3 |
| Molecular Structure: |  |
| Properties | |
| Water Solubility: | Soluble in ethanol and water. Insoluble in vegetable oils. |
| Solubility: | Soluble in ethanol and water. Insoluble in vegetable oils. |
| Appearance: | blue violet powder |
| Specification: |
Acid Blue 9 (CAS NO.2650-18-2) is a blue powder. It may exist as disodium, diammonium or monoammonium-monosodium salt. It is a colorant for foods and other substances to induce a color change. It is denoted by E number E133 and has a color index of 42090. It has the appearance of a reddish-blue powder. It is soluble in water, and the solution has a maximum absorption at about 628 nanometer. Acid Blue 9 has previously been banned in Austria, Belgium, Denmark, France, Germany, Greece, Italy, Norway, Spain, Sweden, and Switzerland among others but has been certified as a safe food additive in the EU and is today unbanned in most of the countries. It has the capacity for inducing an allergic reaction in individuals with pre-existing moderate asthma. In the United States production exceeds 1 million pounds annually, and daily consumption is around 16 mg per person.It is one of the colorants that the Hyperactive Children's Support Group and the Feingold Association recommends to be eliminated from the diet of children. After extensive testing, the National Institutes of Health concluded that color additives do not cause hyperactivity. |
| Color: | Reddish-violet powder or granules with a metallic lustre /sodium salt/ |
| Safety Data | |
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