Dabcyl acid

• CAT Number: I018261
• CAS Number: 6268-49-1
• Molecular Formula: C₁₅H₁₅N₃O₂
• Molecular Weight: 269.3
• Purity: ≥95%
• Storage: Room Temperature
• IUPAC Name: 4-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
• InChI: InChI=1S/C15H15N3O2/c1-18(2)14-9-7-13(8-10-14)17-16-12-5-3-11(4-6-12)15(19)20/h3-10H,1-2H3,(H,19,20)
• InChIKey: WCKQPPQRFNHPRJ-UHFFFAOYSA-N
• SMILES: CN(C)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)C(=O)O

Dabcyl acid（Cat No.:I018261）, commonly referred to as Dabcyl, is recognized as the original dark fluorescence quencher. It is a chromophore that efficiently absorbs and dissipates energy without emitting any fluorescence. Due to its quenching properties, Dabcyl is widely used in fluorescence-based assays and molecular probes. When paired with a fluorophore, Dabcyl acts as an effective quencher, suppressing the fluorescence signal until a specific event or interaction occurs, making it a valuable tool in various scientific and biomedical applications.