The absorbance of Cy7APC reflects the presence of both APC (655 nm absorbance)
as well as the Cy7 (740 nm absorbance). This spectrum was obtained from
a conjugate synthesized with a molar ratio of about 10:1 (Cy7:APC).
Also see the Cy7APC fluorescence spectra; compare this absorbance spectrum to that for APC.