The exact number of organic compounds is difficult to determine because new compounds are constantly being discovered and synthesized. Organic compounds are based on carbon atoms, which can form a vast number of different molecules due to carbon's ability to bond with other elements and itself in various ways.
the number of known organic compounds was estimated to be in the millions. However, it is important to note that this estimate only includes the compounds that have been identified and characterized. With ongoing research and advancements in synthetic chemistry, the number of known organic compounds is expected to continue growing.
It's also worth mentioning that organic compounds can exist in different isomeric forms, where the atoms are arranged differently in space. Isomers can have distinct chemical and physical properties, which further contributes to the diversity of organic compounds.