| Description | Dabcyl acid (DABCYL) is the original dark fluorescence quencher. |
| Synonyms | DABCYL, 4-二甲胺偶氮苯-4’-羧酸, Para-methyl red |
| molecular weight | 269.3 |
| Molecular formula | C15H15N3O2 |
| CAS | 6268-49-1 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |
| Solubility | DMSO: 25 mg/mL (92.83 mM), Sonication is recommended. |