In order to learning about organic compound stability in era of society 5.0, students have to integrate their conceptual knowledge and ability to work with technologies as a tools. It is also need plentiful skill, such as critical thinking. This research aimed to find the connection between students' critical thinking and conceptual knowledge using Marvin sketch. The students must connect all the knowledge and skills with technologies using Marvin sketch to understand the stability of organic compound. The participant were eighteen students from one state university in Indonesia. The study was using descriptive research. It used the nonparametric correlation test. The result show there is a connection between students' conceptual knowledge with the critical thinking skill. It found that the Marvin sketch as a tools have the impact in learning the stability of organic compounds.