Table 1. Properties of photoswitches 1 and 3.

Entry	λ (nm)	Open-DASA 1, ɛ (102 M−1 cm−1)	Trans-azobenzene 3, ɛ (102 M−1 cm−1)
1	360	<3	356.5±4.1
2	365	<3	349.4±4.2
3	370	<3	324.8±4.1
4	430	<3	17.0±0.8
5	445	5.7±1.5	16.7±0.7
6	515	279.7±2.9	4.3±0.7
7	570	1758.0±15.3	<3

DASA, donor–acceptor Stenhouse adduct.

Overview of molar absorptivities of photoswitches 1 and 3 at relevant wavelengths.