CymitQuimica logo

CAS 860-22-0

:

Indigo carmine

Description:
Indigo carmine, also known as indigotindisulfonic acid, is a synthetic dye characterized by its deep blue color. It is commonly used in various applications, including as a food coloring agent (E132), in pharmaceuticals, and in biological staining. The chemical formula for indigo carmine is C16H8N2Na2O8S2, indicating that it contains both sodium and sulfonate groups, which enhance its solubility in water. This compound exhibits excellent stability under normal conditions, but it can degrade when exposed to strong acids or bases. Indigo carmine is known for its ability to absorb light in the visible spectrum, making it useful in colorimetric assays. Additionally, it has been utilized in medical diagnostics, particularly in procedures such as renal function tests. Safety data indicate that indigo carmine is generally regarded as safe for use in food and pharmaceuticals, although some individuals may experience allergic reactions. Overall, its vibrant color and versatility make indigo carmine a valuable compound in various fields.
Formula:C16H10N2O8S2·2Na
InChI:InChI=1S/C16H10N2O8S2.2Na/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;
InChI key:InChIKey=BBHXOPLQIHJZNV-UHFFFAOYSA-N
SMILES:O=C1C(NC=2C1=CC(S(=O)(=O)O)=CC2)=C3C(=O)C=4C(N3)=CC=C(S(=O)(=O)O)C4.[Na]
Synonyms:
  • Dinatrium-5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-yliden)-1,2-dihydro-3H-indol-3-on)disulfonat
  • Indigotin
  • Indigotine
  • C.I. Food Blue 1
  • 1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, disodium salt
  • C.I. Acid Blue 74
  • C.I. Acid Blue 74
  • disodium 5,5-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate
  • 1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, sodium salt (1:2)
  • disodium 5,5-indigodisulphonate
  • See more synonyms
Sort by
Purity (%)
0
100
|
0
|
50
|
90
|
95
|
100
products per page.Found 21 products.