Alizarine Yellow R

• CAT Number: R071076
• CAS Number: 2243-76-7
• Molecular Formula: C13H9N3O5
• Molecular Weight: 287.23
• Purity: ≥95%
• Synonyms: 2-hydroxy-5-[(4-nitrophenyl)diazenyl]benzoic acid
• InChI: InChI=1S/C13H9N3O5/c17-12-6-3-9(7-11(12)13(18)19)15-14-8-1-4-10(5-2-8)16(20)21/h1-7,17H,(H,18,19)
• InChIKey: YVJPMMYYRNHJAU-UHFFFAOYSA-N
• SMILES: C1=CC(=CC=C1N=NC2=CC(=C(C=C2)O)C(=O)O)[N+](=O)[O-]

Alizarine Yellow R（Cat No.:R071076）is a synthetic organic dye commonly used in chemical and biological research. It is a member of the alizarin family, which includes various dyes derived from anthraquinone. Alizarine Yellow R is often used as a pH indicator due to its ability to change color in response to different acidity levels. It has also been employed in histology and cell biology to stain certain cellular structures. Additionally, the dye has applications in the textile industry and in analytical chemistry, where it can help identify specific metal ions and molecules.