Trisomy 18 Standard for counting based assays, 5% fetal fraction, 125ng in 5mL plasma

A 125 ng cfDNA reference standard representing Trisomy 18 at a 5% fetal fraction, supplied in 5 mL of DNA-depleted human plasma. This commutable material provides a true-to-life patient sample mimic for complete NIPT workflow validation.

Serves as a full-process positive control for counting-based Non-Invasive Prenatal Testing (NIPT) assays. It is used to validate the entire testing process, including cfDNA extraction, library preparation, sequencing, and bioinformatic analysis for Trisomy 18 detection.

This ready-to-use standard in a biological matrix is essential for verifying extraction efficiency and routine quality control. For optimal stability, store according to product recommendations.