Roxyl-9

• CAT Number: M200027
• CAS Number: 202582-08-9
• Molecular Formula: C18H13N3O2
• Molecular Weight: 303.31
• Purity: ≥95%
• Synonyms: 4-(benzo[f]benzotriazol-3-ylmethyl)benzoic acid
• InChI: InChI=1S/C18H13N3O2/c22-18(23)13-7-5-12(6-8-13)11-21-17-10-15-4-2-1-3-14(15)9-16(17)19-20-21/h1-10H,11H2,(H,22,23)
• InChIKey: CPVINIGXGKJNOS-UHFFFAOYSA-N
• SMILES: C1=CC=C2C=C3C(=CC2=C1)N=NN3CC4=CC=C(C=C4)C(=O)O

Roxyl-9（Cat No.:M200027）is a nitrogen-containing spin label commonly used in biochemistry and biophysics for studying protein structure, dynamics, and interactions. It contains a stable nitroxide radical that allows for Electron Spin Resonance (ESR) or Electron Paramagnetic Resonance (EPR) spectroscopy. This label can be attached to proteins or other biomolecules to track their movement, conformational changes, or interactions in complex environments. Roxyl-9 is particularly useful in probing membrane proteins, molecular motions, and the local microenvironment of the labeled molecules, providing insights into cellular processes and structural biology.