Acid orange 7

• CAT Number: R071080
• CAS Number: 633-96-5
• Molecular Formula: C16H11N2NaO4S
• Molecular Weight: 350.32
• Purity: ≥95%
• Synonyms: sodium;4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
• InChI: InChI=1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1
• InChIKey: CQPFMGBJSMSXLP-UHFFFAOYSA-M
• SMILES: C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=C(C=C3)S(=O)(=O)[O-])O.[Na+]

Acid Orange 7(CAT: R071080) is a synthetic azo dye widely used in textile, paper, leather, and cosmetic coloring applications. Known for its vibrant orange-red hue, it offers strong color fastness and high solubility in water, making it ideal for dyeing silk, wool, and other protein fibers. In research, it is utilized as a pH indicator and staining agent in histology. With a molecular formula of C16H11N2NaO4S, Acid Orange 7 delivers consistent performance and brilliant coloration. Its stability under varying pH conditions and compatibility with diverse materials make it a versatile choice for both industrial processes and scientific applications.