Indigo

• CAT Number: R014783
• CAS Number: 482-89-3
• Molecular Formula: C16H10N2O2
• Molecular Weight: 262.268
• Purity: ≥95%
• Synonyms: Indigo Pure BASF; [Δ2,2’-Biindoline]-3,3’-dione; 11669 Blue; 2,2’-Bis(2,3-dihydro-3-oxoindolylidene); Blue No. 201?C Blue 22; C.I. 73000; C.I. Natural Blue 1; C.I. Pigment Blue 66; C.I. Vat Blue 1; Cystoceva; D and C Blue No. 6; D&C Blue No. 6; D+C B
• Storage: -20°C
• IUPAC Name: (2E)-2-(3-oxo-1H-indol-2-ylidene)-1H-indol-3-one
• InChI: InChI=1S/C16H10N2O2/c19-15-9-5-1-3-7-11(9)17-13(15)14-16(20)10-6-2-4-8-12(10)18-14/h1-8,17-18H/b14-13+
• InChIKey: COHYTHOBJLSHDF-BUHFOSPRSA-N
• SMILES: C1=CC=C2C(=C1)C(=O)C(=C3C(=O)C4=CC=CC=C4N3)N2

Indigo(CAT: R014783) is an organic compound that is commonly used as a dye. It is a deep blue-violet color and is often used to dye fabrics, textiles, and paper. Indigo has been used as a dye for thousands of years, and it was historically obtained from the leaves of certain plants. Indigo has a number of industrial and commercial applications, and it is also used in the production of ink, paints, and plastics.