carmine

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CAS NO:	1390-65-4
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Methylthioninium C

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CAS NO:1390-65-4

EC NO:215-724-4

Molecular Formula:C₄₄H₄₃O₃₂CaAl

Molecular Weight:1150.86

Synonyms:;hydrated alu－minium chelate of carminic acid;cochineal and carminic acid;Natural Red 4;Nacarat Cochineal;calcium 6-carboxy-1-[[6-carboxy-4,7-dihydroxy-5-methyl-2-oxido-9,10-dioxo-3-[(2R,3S,4S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxy-1-anthryl]oxy-hydroxy-alumanyl]oxy-4,7-dihydroxy-5-methyl-9,10-dioxo-3-[(2R,3S,4S,5S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxy-anthracen-2-olate trihydrate;

Molecular Structure: