🟢 I. Monoterpenes (C10 Backbone)

Acyclic Monoterpenes

β-Myrcene
|
|-- Ocimen
|     |-- Cis-Ocimene
|     |-- Trans-Ocimene
|     |-- Allo-Ocimene
|
|-- Linalool
|     |-- Linalyl acetate
|
|-- Geraniol
|     |-- Geranyl acetate
|     |-- Nerol
|     |-- Isogeraniol
|
|-- Citronellol
|
|-- Lavandulol

Monocyclic Monoterpenes

Limonene
|
|-- Pseudolimonene
|
|-- Terpinolene
|
|-- γ-Terpinene
|-- α-Terpinene
|-- β-Terpinene
|
|-- Sabinene
|
|-- Menthol
|     |-- Isopulegol
|     |-- Isomenthone
|     |-- Menthofuran
|
|-- Carvone
|     |-- Dihydrocarveol
|     |-- Isodihydrocarveol
|
|-- Verbenone
|-- Verbenol

Bicyclic Monoterpenes

α-Pinene
|
|-- β-Pinene
|-- Pinene-4-ol
|
|-- Fenchol
|
|-- Camphene
|
|-- Borneol
|     |-- Isoborneol
|     |-- Bornyl acetate
|
|-- Camphor
|
|-- Thujone

🟢 II. Sesquiterpenes (C15 Backbone)

Acyclic Sesquiterpenes

Farnesene
|
|-- α-Farnesene
|-- β-Farnesene
|
|-- Farnesol
|
|-- Nerolidol
|     |-- cis-Nerolidol
|     |-- trans-Nerolidol
|
|-- Valencene

Monocyclic Sesquiterpenes

Caryophyllene
|
|-- β-Caryophyllene
|-- α-Humulene (α-Caryophyllene)
|     |-- Humulene epoxide I
|     |-- Humulene epoxide II
|
|-- α-Bisabolol
|
|-- Caryophyllene oxide
|-- Isocaryophyllene
|-- Acetoxycaryophyllene
|
|
Germacrene
|
|-- Germacrene A
|-- Germacrene B
|-- Germacrene D
|
|
Aromadendrene
|
|-- Alloaromadendrene
|-- Aromadendral
|
|
Cadinene
|
|-- γ-Cadinene
|-- δ-Cadinene
|
|
Selinene
|
|-- α-Selinene
|-- β-Selinene
|-- δ-Selinene
|
|
Santalene
|
|-- α-Santalene
|-- β-Santalene
|
|
Bergamotene
|
|-- α-Bergamotene
|-- β-Bergamotene
|
|
Calacorene
|
|-- α-Calacorene
|-- β-Calacorene
|
|
Amorphene
|
|-- α-Amorphene
|-- δ-Amorphene
|
|
Longifolene
|
Longiborneol
|
Isolongifolol
|
Cubebol
|
β-Bourbonene

Bicyclic Sesquiterpenes

Cedrene
|
|-- Cedrol
|
|
Guaiol
|
Guaiene
|
|-- α-Guaiene
|-- β-Guaiene
|
|
Patchoulol
|
Norpatchoulenol
|
Caryophylladienol
|
|-- Caryophylladienol I
|-- Caryophylladienol II
|-- Caryophylladienol III
|-- Caryophylladienol IV
|-- Caryophylladienol V
|-- Caryophylladienol VI
|
|
Gurjunene
|
|-- β-Gurjunene
|
|
Zonarene
|
Globulol

🟢 III. Oxygenated Derivatives & Functional Terpenes

Epoxides

Isoaromadendrene epoxide
|
α-Selinene oxide
|
α-Calacorene oxide

Acetates

Linalyl acetate
|
Geranyl acetate
|
Terpinyl acetate
|
Bornyl acetate
|
Isoborneol acetate

Alcohols & Ketones

Pulegone
|
Cryptone
|
Piperitone
|
Ocimenol
|
Ocimenone
|
Carvone
|
Verbenone
|
Verbenol
|
α-Ionone
|
β-Ionone
|
Dihydroactinidiolide

🟢 IV. Phenolic & Phenylpropanoid Terpenes

Thymol
|
|-- Thymohydroquinone
|
Carvacrol
|
Eugenol
|
|-- Isoeugenol
|-- Methyleugenol
|
Anethole
|
|-- Estragole
|-- Safrole
|-- Dillapiole
|
Myristicin
|
Apiol
|
Hinokitiol

🟢 V. Special & Rare Terpenes

Santalol
|
|-- Cis-Santalol
|-- Trans-Santalol
|
α-Sinensal
|
β-Sinensal
|
α-Iso-Muurolol
|
β-Iso-Muurolol
|
Leptospermone
|
Neointermedeol
|
Intermedeol
|
Acoradiene
|
Megastigmatrienone
|
Pregeijerene
|
Geijerene
|
Pseudolimonene
|
Zingiberene
|
β-Zingiberene
|
α-Bulnesene

‍