: A specific product number for the laboratory chemical tert-Butyl bromoacetate sold by suppliers like Sigma-Aldrich .
: A unique identifier for scientific papers or preprints, such as a bioRxiv preprint on skeletal muscle development or an MIT persistent URL for research on nanodiamonds. 124230
: A notable statistic regarding the 124,230 freshman applications received by UC Irvine for the Fall 2025 semester. : A specific product number for the laboratory