e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
New near infrared absorbing metal complex dyes: Synthesis and metallochromic properties of two isomeric ligands, 2-(dimethylamino) naphtho {(1, 2-g) and (2, 1-g)} …
K Yoshida, T Koujiri, E Sakamoto, Y Kubo
Index: Bulletin of the Chemical Society of Japan, , vol. 63, # 6 p. 1748 - 1752