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CAS number：1260-17-9
molecular formula：C22H20O13
molecular weight：492.39
EINECS number：215-023-3
English synonyms:
Carminic Acid ;3,5,6,8-Tetrahydroxy-1-methyl-9,10-dioxo-7-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-9,10-dihydroanthracene-2-carboxylic acid;Carminic acid (C.I. 75470) GR for analysis and for microscopy;ALUMINUM LAKE OF CARMINIC ACID;2-anthracenecarboxylicacid,7-beta-d-glucopyranosyl-9,10-dihydro-3,5,6,8-tetra;7-.beta.-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-2-Anthracenecarboxylicacid;7-alpha-d-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo;C.I.Naturalred4
Related categories
Food Colors; Food Colors; Plant Extracts; Colorants; Analytical Reagents - Indicators; General Biochemical Reagents - Carbohydrates; Anthraquinones; Biochemistry; Glucose; Glycosides; Di-Terpenoids; Hydroxyanthraquinones; Chemicals;Pharmaceuticals
food coloring. Mainly used for: carbonated drinks, sausages, western-style ham, pudding snacks, yogurt, candy, sauce, ice cream, ice cream, popsicles, flavored milk powder, fried potato chips seasoning, fried potato chips, puffed ready-to-eat breakfast cereals, Flavored condensed milk, fruit juice, pulp drink, frozen drink, bread powder, bread crumbs. It was used to dye wool in ancient times, and it is also a good daily chemical dye.
| Melting point | 136 °C |
| Boiling point | 506.2°C (rough estimate) |
| Specific optical rotation | 15654 +51.6° (water) |
| Density | 1.4504 (rough estimate) |
| Refractive index | 1.6000 (estimate) |
| Flash point | 12℃ |
| Storage conditions | room temp |
| Solubility | 30g/l |
| Shape | Crystalline Powder |
| Color index | 75470 |
| Acidity coefficient(pKa) | 1.62±0.20(Predicted) |
Color | Red to dark red |
Odor | Odorless |
| Acid-base indicator discoloration pH value range | 4.8 - 6.2 |
| pH value | 1.6 (10g/l, H2O, 20℃) |
Hptical activity | [α]20/D +3.1°, c = 1 in H2O |
| Water solubility | 1.298g/L(room temperature) |
Merck | 14,1843 |
BRN | 71651 |
| CAS database | 1260-17-9 |
● food coloring. Mainly used for: carbonated drinks, sausages, western-style ham, pudding snacks, yogurt, candy, sauce, ice cream, ice cream, popsicles, flavored milk powder, fried potato chips seasoning, fried potato chips, puffed ready-to-eat breakfast cereals, Flavored condensed milk, fruit juice, pulp drink, frozen drink, bread powder, bread crumbs. It was used to dye wool in ancient times, and it is also a good daily chemical dye.
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