Endogenous Glycosaminoglycan (GAG) Disaccharide, "UA-HNAc(1S)-Early," prepared with blood from a healthy adult. Product consists of one QC High DBS card prepared with blood from a healthy adult spiked with the Endogenous Disaccharide, "UA-HNAc (1S)-Early." One control DBS card prepared with unspiked blood is also provided. Each DBS card contains five DBS. At least five to six 3 mm punches can be taken from each DBS.
 
Internal Standard sold separately (product BM14A).