Active Substance
- a-Carotene
- a-Phellandrene
- a-Pinene
- a-Terpineol
- a-Tocopherol
- Acetic Acid
- Acetylcholine
- Achilleine
- Acids
- Adenosine
- Aescigenine
- Aescine
- Aesculin
- Aesculoside
- Alanine
- Alaterine
- Albumin
- Alcohols
- Aldehydes
- Alisin
- Alkaloids
- Alkannin
- Alkenes
- Allantoic Acid
- Allantoin
- Altheine
- Amides
- Amides of Lysergic Acid
- Amines
- Amino Acids
- Aminophenols
- Ammonia
- Amygdalin
- Anabasine
- Anemonin
- Anethole
- Angelic Acid
- Anthocyanidins
- Anthocyanins
- Anthocyanosides
- Anthraquinone Derivatives
- Anthraquinones
- Antibiotic Substances
- Antioxidants
- Aourantiamarin
- Apigenin
- Apiin
- Apiole
- Arabinose
- Arachidic Acid
- Arbutin
- Arginine
- Aromatic Amines
- Aromatic Compounds
- Asarone
- Asparagine
- Aspartic Acid
- Asperuloside
- Atropine
- Avenin
- Avicularin
- Azulenes