Blu toluidina, C.I. 52040, per microscopia

- Synonyms: Basic blue 17, Toluidine blue O
- C15H16ClN3S
- M = 305,83 g/mol
- CAS [92-31-9]
- EINECS-No.: 202-146-2
- Solub. in water: (25 ºC): 30 g/l
- Tariff number: 3204 13 00 90
- Applications: indicator (microscopy), manufacture of dyes.

SPECIFICATIONS
Absorption maximum l (in H2O): 628 - 633 nm
Absorptivity (A1%/1 cm; l max.): min. 1050
loss on drying (110 ºC): max. 8 %