DNA Size Standard 550 (BTO) (100)

For accurate sizing of sequencing fragments on capillary electrophoresis platforms, the QIAGEN DNA Size Standard 550 (BTO) delivers reliable reference bands spanning up to 550 bp. This ready-to-load standard is formulated for compatibility with BigDye Terminator chemistry and is supplied in a single-use vial configuration providing 100 runs per pack. Researchers load it as an internal lane standard during Sanger sequencing and microsatellite fragment analysis, where the labeled fragments co-migrate with sample DNA and enable automated genotyping software to assign base-pair sizes to each detected peak. The kit is shipped at room temperature and remains stable through routine laboratory handling, supporting reproducible workflows across human identification, microbial strain typing, and mutation screening studies.