Carmine

• CAT Number: M049585
• CAS Number: 1390-65-4
• Purity: ≥95%
• IUPAC Name: 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[(2R,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid
• InChI: InChI=1S/C22H20O13/c1-4-8-5(2-6(24)9(4)22(33)34)13(25)10-11(15(8)27)16(28)12(18(30)17(10)29)21-20(32)19(31)14(26)7(3-23)35-21/h2,7,14,19-21,23-24,26,28-32H,3H2,1H3,(H,33,34)/t7-,14-,19+,20-,21-/m1/s1
• InChIKey: DGQLVPJVXFOQEV-NGOCYOHBSA-N
• SMILES: CC1=C2C(=CC(=C1C(=O)O)O)C(=O)C3=C(C2=O)C(=C(C(=C3O)O)[C@@H]4[C@@H]([C@H]([C@@H]([C@H](O4)CO)O)O)O)O

Carmine（Cat No.:M049585）is a natural red pigment derived from carminic acid, extracted primarily from the dried bodies of cochineal insects (Dactylopius coccus). It has been widely used as a colorant in food, cosmetics, and pharmaceuticals due to its vibrant hue and stability. In research, carmine serves as a biological stain for microscopy, particularly in histological studies to visualize mucins and other tissue components. It is also used in permeability assays and as a tracer in gastrointestinal studies. Carmine is valued for its natural origin and strong chromatic properties.