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Product Name Carmine
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Catalog No.: CN05986
CAS No.: 1390-65-4
Molecular Formula: C22H20O13
Molecular Weight: 492.39 g/mol
Purity: >=98%
Type of Compound: Anthraquinones
Physical Desc.: Red powder
Source: The coloring matter from the insect Coccus cacti L.
Solvent: DMSO, Pyridine, Methanol, Ethanol, etc.
SMILES: OCC1OC(C(C(C1O)O)O)c1c(O)c2c(c(c1O)O)C(=O)c1c(C2=O)c(C)c(c(c1)O)C(=O)O
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Description Carmine (Carmine red), a "semi-synthetic" dye, is a complex of aluminum and the natural dye Cochineal (Carminic acid). Cochineal is isolated from the native Mexican and South American insect. Carmine is a widely used "natural" food additive. Carmine provokes both an immediate hypersensitivity and a delayed systemic response with cutaneous expression[1][2].
In Vitro Carmine has been used in biological staining to demonstrate selectively nuclei, chromosomes or mucins, depending on the formulation[2].
Density1.9±0.1 g/cm3
Boiling Point907.6±65.0 °C at 760 mmHg
Flash Point316.1±27.8 °C
Exact Mass492.090393
PSA256.66000
LogP4.80
Vapour Pressure0.0±0.3 mmHg at 25°C
Storage conditionStore at +5°C to +30°C.