RTC-1.19.2-MAIN.jar is an alpha file of the Minecraft mod Real Time Chemistry for Forge, made for Minecraft 1.19.2. It was published on May 17, 2023 and is 40.6 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Real Time Chemistry mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.