Untargeted metabolomics data of Yanbian cattle longissimus dorsi across four slaughter ages

Biological samples are identified as 24-1 to 24-6, 28-1 to 28-6, 32-1 to 32-6, and 36-1 to 36-6, where the first number indicates slaughter age in months and the second number identifies the individual animal. Files labeled Positive_Ion and Negative_Ion correspond to positive- and negative-ion ESI acquisition, respectively.

The QC files represent pooled quality-control samples prepared from equal aliquots of the biological samples and analyzed in both ionization modes. Data were acquired using a Vanquish UHPLC system coupled to a Q Exactive HF-X high-resolution mass spectrometer. All metabolomic measurements deposited here were newly generated for this study and have not been published previously.