Cochineal (dye)
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Cochineal (dye)
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CAS No:
1343-78-8
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Chemical Name:
Cochineal (dye)
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Synonyms:
Cochineal (dye);Cochineal;Cochineal tincture;Cochineal solution;Enji;Starred KL;CA 90;KR 50A;8031-23-0;8047-02-7;85085-30-9;93062-68-1
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CAS No:
Description
Solid
Solid
Coloring matter from the insect Coccus cacti L. It is used in foods, pharmaceuticals, toiletries, etc., as a dye, and also has use as a microscopic stain and biological marker.
Characteristics
243
0.97 (est)
Red Powder
1.3±0.1 g/cm3
136 °C
474.3±45.0 °C at 760 mmHg
240.7±28.7 °C
1.579
1.3 mg/mL at 25 °C
5.07X10-27 mm Hg at 25 deg C (est)
Specific optical rotation (water): +51.6 deg at 15 °C/654 angstroms
pH = 4.8 (yellow); pH = 6.2 (violet)
Drug Information
Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS. (See all compounds classified as Coloring Agents.)|Natural or synthetic dyes used as coloring agents in processed foods. (See all compounds classified as Food Coloring Agents.)
7-glucopyranosyl-3,5,6,8-tetrahydroxyl-1-methyl-9,10-dioxoanthracene-2-carboxylic acid
Cochineal (dye) Use and Manufacturing
The female cochineal (Dactylopius coccus) is extracted with water, dilute alcohol solution or alcohol, and aluminum hydroxide is added to the extract, which is obtained by precipitation. The molecular ratio of aluminum to carmine acid is 1:2. It needs to be pasteurized or other treatments before being used in food to eliminate all Salmonella bacteria.
Edible red pigment. According to Japanese regulations, it can be used in tomato sauce, wine, candy, strawberry jam, beverages, cold drinks, sausages, pastries, etc.
2-Anthracenecarboxylic acid, 7-.beta.-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-: ACTIVE|Cochineal (dye): ACTIVE
Cosmetics -> Cosmetic colorant
Computed Properties
Molecular Weight:492.4
XLogP3:0.5
Hydrogen Bond Donor Count:9
Hydrogen Bond Acceptor Count:13
Rotatable Bond Count:3
Exact Mass:492.09039069
Monoisotopic Mass:492.09039069
Topological Polar Surface Area:243
Heavy Atom Count:35
Complexity:864
Undefined Atom Stereocenter Count:5
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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