Compound SiR-tetrazine

2-(7-(Dimethylamino)-3-(dimethyliminio)-5,5-dimethyl-3,5-dihydrodibenzo[b,e]silin-10-yl)-4-((4-(6-methyl-1,2,4,5-tetrazin-3-yl)benzyl)carbamoyl)benzoate

From: A near-infrared fluorophore for live-cell super-resolution microscopy of cellular proteins