Reactive Blue 21

• CAT Number: R026572
• CAS Number: 12236-86-1
• Molecular Formula: C40H25CuN9O14S5
• Molecular Weight: 1079.535
• Purity: ≥95%
• Synonyms: C.I. Reactive Blue 21; Bezaktiv Turquoise Blue V-G; Chromafix Blue Turquoise G; Cibacron Turquoise H-GN; Diamira Turquoise Blue G; Everzol Turquoise Blue G; Gemazol Turquoise Blue G; Helaktyn Turquoise G; Intracron Turquoise VS-RP; Levafix Turquoise
• Storage: Room temperature
• InChI: InChI=1S/C40H25N9O14S5.Cu/c50-13-14-64(51,52)20-3-1-19(2-4-20)49-65(53,54)21-5-9-25-29(15-21)37-41-33(25)43-38-31-17-23(67(58,59)60)7-11-27(31)35(45-38)47-40-32-18-24(68(61,62)63)8-12-28(32)36(48-40)46-39-30-16-22(66(55,56)57)6-10-26(30)34(42-37)44-39;/h1-12,15-18,49-50H,13-14H2,(H3-2,41,42,43,44,45,46,47,48,55,56,57,58,59,60,61,62,63);/q-2;+2
• InChIKey: WXQMFIJLJLLQIS-UHFFFAOYSA-N
• SMILES: C1=CC(=CC=C1NS(=O)(=O)C2=CC3=C4[N-]C(=C3C=C2)N=C5C6=C(C=CC(=C6)S(=O)(=O)O)C(=N5)N=C7C8=C(C=CC(=C8)S(=O)(=O)O)C(=N7)N=C9C1=C(C=CC(=C1)S(=O)(=O)O)C(=N4)[N-]9)S(=O)(=O)CCO.[Cu+2]

Reactive Blue 21 is a synthetic dye used extensively in the textile industry for coloring cotton, wool, and silk fabrics. Known for its excellent colorfastness and vibrant hue, it forms strong covalent bonds with fibers, ensuring durability and resistance to washing. Additionally, Reactive Blue 21 is employed in scientific research for staining proteins and other biomolecules, aiding in analytical studies.