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| Customization: | Available |
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| CAS No.: | 2783-94-0 |
| Formula: | C16h13n2nao7s2 |
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Sunset Yellow (SY), with the chemical name 6-hydroxy-5-[(4-sulfonic acid phenyl)azo]-2-naphthalenesulfonic acid dihydrate, has the molecular formula C16H10N2Na2O7S2. It is a water-soluble azo-based colorant and is a commonly used artificial food coloring. Due to its stable properties and low price, it is widely used for coloring products such as food, beverages, and ice cream.
1.Food sector
Sunset Yellow is a food coloring agent approved in China. It is stable in acidic media, has good heat resistance and light resistance.
2.Cosmetics and personal care sector
It is used as a coloring agent and added to cosmetics such as lipsticks and blushes, as well as daily care products like toothpaste and insect repellent.
3.Industries and other fields
Used for coloring inks, paints, plastics, textiles, and also for coloring feed (such as freshwater fish bait), as well as toys, food packaging materials, etc.
| Product name | Sunset Yellow |
| Appearance | Orange red powder or granule |
| Sunset yellow content, w/% | ≥87.0 |
| Loss on drying,chloride and sulphate total content, w/% | ≤13.0 |
| Water insoluble matter,w/% | ≤0.20 |
| Sodium sulfanilate,w/% | ≤0.20 |
| Sodium 6-hydroxynaphthalene-2-sulfonate, w/% | ≤0.30 |
| 6,6'-Oxybis-2-naphthalenesulfonic Acid Disodium Salt | ≤1.0 |
| 4,4''-(Diazoamino)Dibenzenesulfonic Acid Disodium Salt, w/% | ≤0.10 |
| 1-Phenylazo-2-naphthol, mg/kg | ≤10.0 |
| Unsulfonated primary aromatic amines (as Aniline),w/% | ≤0.01 |
| Deputy dye,w/% | ≤4.0 |
| Arsenic(As) mg/kg | ≤1.0 |
| Lead (As Pb)mg/kg | ≤10.0 |
| Mercury(Hg) mg/kg | ≤1.0 |
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