The absolute amount of 13C6-GlcNS-GlcUA in the vial was determined using quantitative NMR to have the stated value on the vial. The vial has additional components, but none are isobaric with 13C6-GlcNS-GlcUA, and these additional components have no effect on the ability to quantify the 13C6-GlcNS-GlcUA.
13C6-GlcNS-GlcUA (GAG Endogenous NRE)
SKU: BM12B

