Code name of dye

λ_max

Absorption wavelength (nm)

ε_max

Molar absorption coefficient

ν_1/2 (nm)

Full width at half maximum^*

BA-C2,2

491

4.59 × 10³

115

OA-C2,2

495

1.14 × 10⁴

115

DA-C2,2

492

1.71 × 10⁴

113

DDA-C2,2

491

1.31 × 10⁴

120

HDA-C2,2

491

1.13 × 10⁴

120