Dear Bassant Naiel

I think that any phytochemical database my not satisfy the aim of such a collection of information but can give some insights about such phytoconstituents. This is because of the variation in the ecological and seasonal conditions which eventually lead to a significant difference in the quality and quantity of these chemicals.

All the best

Database of botanicals that are reported to contain naturally occurring substances of possible concern for human health when present in food

https://www.efsa.europa.eu/en/data/compendium-botanicals

other answers regarding your topic and already in ResearchGate:

https://www.researchgate.net/post/What_are_all_best_plant_databases_for_phytochemical_studies

https://www.researchgate.net/post/Is_there_a_database_enlisting_signature_metabolites_in_particular_plant_species

Thank you for your answer Roberto Molteni

Dear Bassant Naiel

I think that any phytochemical database my not satisfy the aim of such a collection of information but can give some insights about such phytoconstituents. This is because of the variation in the ecological and seasonal conditions which eventually lead to a significant difference in the quality and quantity of these chemicals.

All the best

Thank you Dr. Yasser Fakri Mustafa for your helpful answer

Databases for phytochemicals . search on google by giving the botanical name of the plant & ask for chemical constituents of the plants. You may likely to get data base if it has already worked out for phytochemical investigation..

Not sure if this is what you're looking for but there's a global hyperaccumulator database of plants with unusually high metal compositions:

http://hyperaccumulators.smi.uq.edu.au/collection/

Thank you for your answers

I agree with Fakir.

Just to add to what was previously said, NIST can also be useful