Table 2 pKa, log P, and log D of phenothiazinium dyes calculated in silico with ChemAxon software. The pH of organelles was obtained from Ref.26.

From: The potential of phenothiazinium dyes as cytotoxicity markers in cisplatin-treated cells

 

pKa

log P

log D (pH 7.4)

log D (lysosomes; pH 4.7)

log D (mitochondria; pH 8.0)

MB

3.14

 − 0.51

 − 0.62

 − 0.63

 − 0.62

NMB

7.03

3.55

3.72

1.52

3.84

TBO

3.17

 − 1.09

 − 1.04

 − 1.05

 − 1.04

DMMB

3.86

0.23

0.29

0.23

0.29