Toluidine blue O (C.I. 52040), for microscopy, Molar mass (M) 305,83 g/mol, CAS No. 92-31-9, EC No. 202-146-2, Empirical formula C15H16Cl N3S
Basic water-soluble nuclear dye, used in solutions of 0.03-0.1 %. In histology e.g. used for staining of neurohistological specimens, in botany for detection of plant cells (solutions of 0.03-0.1 %).
| Dyeing | abnormal cells blue |
| Use | intravital staining |
0300.1