Description_x000D_ General description_x000D_ SILu™Carb Glycan Standards are patented synthetic 13C-labeled N-glycans for use as internal standards in absolute glycan quantification by mass spectrometry._x000D_ Application_x000D_ For use as a quantitative standard in applications such as Matrix-assisted Laser Desorption Ionization-time-of-flight (MALDI-TOF), Electrospray Ionization (ESI) and Liquid Chromatography Mass Spectrometry (LC-MS)._x000D_ Physical form_x000D_ 13C labeled N-glycan refernce standard. 20 microM quantified solution_x000D_ Legal Information_x000D_ SILu is a trademark of Sigma-Aldrich Co. LLC