: At certain institutions, such as the University of Kelaniya, CORE 4449X is a designated course code for a Research Project within specialized degree programs like B.Sc. in Speech & Hearing Sciences.

: In 2017, the software company Sanderson Group PLC used the RNS number 4449X to announce its £12 million acquisition of Anisa Consolidated Holdings Limited .

In the financial sector, is frequently used as an RNS (Regulatory News Service) number, which is a unique identifier for announcements made through the London Stock Exchange.

) often appears as a or calibration curve used to quantify antioxidant activity or phytochemical concentrations.

to represent the DPPH scavenging activity of methanol extracts.

: A study on the properties of Hymenocardia acida stem bark used the equation