
D5405-3 by Zymo Research is a 5-Hydroxymethylcytosine DNA Standard — a 897 bp linear dsDNA in which 100% of cytosines are 5-hmC. Each vial contains 2 µg at 50 ng/µl for use as a positive control or calibration reference in 5-hmC ELISA, dot blot, and LC-MS/MS workflows.