All natural product types from all biological sources are included: Alkaloids Antibiotics Flavonoids Carbohydrates Tannins Terpenoids Steroids Polyketides Polypyrroles Lignans Amino acids, peptides, and proteins Products of unknown structureThe data provided includes: Accurate, systematic chemical names, trade names, and trivial names Searchable chemical structures CAS Registry numbers Extensive UV and biological source data Molecular formulae, accurate mass and percent composition Physical data including melting/boiling points, optical rotation, and dissociation constants and refractive index Uses including biological use Hazard and toxicity information including LD50 values Concise bibliography Biogenetic classification scheme grouping all related natural products together