3D UTE and 2D single-shot fast spin-echo (SSFSE) gagCEST techniques were used to image varying concentrations of chondroitin sulfate (CS) in long or short T1 solutions. Echo time (TE) in SSFSE and UTE ranged from 10-60 ms, and 0.1-8 ms, respectively. Effect of TE on asymmetric magnetization transfer ratio (MTRasym) was examined around 1.0 and 3.5 ppm. For long T1 saline phantom, we found a general increase in MTRasym with concentration, with similar slopes over different TEs, for either technique. For short T1 MnCl2 doped phantom, while UTE could acquire gagCEST signal unlike SSFSE, no consistent trends were found.