REACTIVE BLACK 5

• CAT Number: M074255
• CAS Number: 17095-24-8
• Molecular Formula: C26H21N5Na4O19S6
• Molecular Weight: 991.82
• Purity: ≥95%
• Storage: -20°C
• IUPAC Name: tetrasodium;4-amino-5-hydroxy-3,6-bis[[4-(2-sulfonatooxyethylsulfonyl)phenyl]diazenyl]naphthalene-2,7-disulfonate
• InChI: InChI=1S/C26H25N5O19S6.4Na/c27-23-22-15(13-20(53(37,38)39)24(23)30-28-16-1-5-18(6-2-16)51(33,34)11-9-49-55(43,44)45)14-21(54(40,41)42)25(26(22)32)31-29-17-3-7-19(8-4-17)52(35,36)12-10-50-56(46,47)48;;;;/h1-8,13-14,32H,9-12,27H2,(H,37,38,39)(H,40,41,42)(H,43,44,45)(H,46,47,48);;;;/q;4*+1/p-4
• InChIKey: HFIYIRIMGZMCPC-UHFFFAOYSA-J
• SMILES: C1=CC(=CC=C1N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)S(=O)(=O)CCOS(=O)(=O)[O-])N)O)S(=O)(=O)CCOS(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

Reactive Black 5（Cat No.:M074255） is a synthetic azo dye belonging to the class of reactive dyes, commonly used in textile, paper, and leather industries to color materials. Its chemical structure contains azo and anthraquinone components, providing vibrant and durable coloration through covalent bonding with substrates. Despite its wide application, Reactive Black 5 poses environmental and health risks due to its potential toxicity, carcinogenicity, and persistence. Efforts to mitigate its adverse effects include wastewater treatment, substitution with safer alternatives, and regulatory measures governing its use and disposal to safeguard human health and the environment.