| Isolate | Bark source | Researched activity | 
|---|
|  Paclitaxel, taxanes  |  Taxus  | chemotherapeutic | 
|---|
|  Paeonol  |  Paeonia suffruticosa  [1]  | various | 
|---|
|  Honokiol, 4-O-methylhonokiol, magnolol, obovatol  |  Magnolia  |  neurotrophic & anti-inflammatory | 
|---|
|  Salicylic acid  |  Salix alba  |  antipyretic, analgesic | 
|---|
|  Yohimbine, corynanthine, ajmalicine, rauwolscine  | west African evergreen |  MAOI, stimulant | 
|---|
|  beta-carbolines, harmala alkaloids  | numerous |  MAOI  | 
|---|
|  Cinnamon, camphor, cinnamaldehyde  |  Cinnamomum  | blood sugar stabilizer, antioxidant | 
|---|
|  Quinine, quinidine, cinchonidine, cinchonine  |  Cinchona  | antipyretic, analgesic, antimalarial | 
|---|
|  Safrole  |  Sassafras  |  | 
|---|
|  Huáng bǎi  |  Amur cork tree (Phellodendron amurense) |  TCM  | 
|---|
|  Strictamine  |  Alstonia scholaris  |  | 
|---|
 |  Slippery Elm (Ulmus rubra) | demulcent | 
|---|
|  Geniposidic acid  |  Eucommia ulmoides  |  | 
|---|
|  N-methyltryptamine, serotonin analogs  | numerous species from Brazil, Mexico, Taiwan |  serotonin agonist, neuroimmunologic modulator | 
|---|
|  Quassin  |  Quassia amara  | various | 
|---|
|  Celastrol  |  Tripterygium wilfordii  [2]  | various | 
|---|
|  Mitraphylline  |  Cat's claw (Uncaria tomentosa) |  anti-inflammatory  | 
|---|
|  Ellagic acid, rutin, gallic acid, ethyl gallate  [3]  |  Ailanthus altissima  | various | 
|---|
|  Coronaridine, voacangine, ibogamine, ibogaine, tabernanthine  |  Voacanga africana ,  Tabernanthe iboga  |  neuroimmunologic modulator | 
|---|
|  Lapachol, quercetin  | Pau D'Arco ( Handroanthus impetiginosus ) | therapeutic naphthoquinone  | 
|---|
|  Icariin  |  Eucommia  |  PDE5 inhibitor  | 
|---|
|  Baicalin  |  Oroxylum indicum  |  prolyl endopeptidase inhibitor | 
|---|
|  Frankincense, incensole  |  Boswellia sacra ,  Boswellia  | incensole is a TRPV3 agonist | 
|---|
|  QS21  |  Quillaja saponaria  (soap bark tree) | potential immunologic adjuvant | 
|---|
|  Sandalwood oil, α-Santalol, β-Santalol  |  Sandalwood (Santalum) |  Ayurvedic component | 
|---|
|  Bergenin, α-viniferin, ε-viniferin, diptoindonesin A  |  Bergenia ligulata ,  Dryobalanops aromatica ,  Mallotus japonicus  | component of Ayurvedic medicine "Paashaanbhed" | 
|---|
| Phenolic lactones |  Caesalpinia paraguariensis  | component of Bolivian traditional medicine | 
|---|
|  Erythravine  |  Erythrina mulungu  | Brazilian medicinal plant | 
|---|
| Antimicrobial, anti-inflammatory compounds |  Psidium guajava  (Guava tree) | component of traditional medicine | 
|---|
| Perfume resin |  Agarwood / Oud Wood | aromatherapy | 
|---|
|  Opopanax, balsam, bdellium, bisabol  |  Myrrh (Commiphora) | component of Eastern-Mediterranean, Middle-Eastern, and North-African, traditional medicine | 
|---|
|  Rotenoids, piscidone |  Jamaican dogwood (Piscidia piscipula) | component of Caribbean traditional medicine | 
|---|
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