Fraxinus rhynchophylla Hance |
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Botanical Name |
: |
Fraxinus rhynchophylla Hance |
English
Name |
: |
Chinese ash, Northern ash |
Synonym(s) |
: |
Fraxinus bungeana non DC., Fraxinus chinensis rhynchophylla (Hance.)Hemsl. |
Family |
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Oleaceae |
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General Info
| Description |
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Deciduous tree, to 10 m tall, but usually much smaller. Leaves opposite, odd-pinnate; leaflet 5-7, wide ovate or wide lanceolate, 6-15 cm long, green, glabrous above, pubescent on mid-vein beneath, crenate or smooth. Flowers small, in axillary panicles, with or after leaves, unisexual; calyx small, 4-lobed; petals none in male flowers, 2-4 in female flowers. Fruit a 1-seeded, winged samara, to 5 cm long. |
| Herb Effects |
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Analgesic, anticoagulant, antibacterial, anti-inflammatory, antitussive, astringent, diuretic, expectorant and stomachic (bark) |
Chemistry
| Active Ingredients |
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Esculetin, esculin, fraxetin, fraxin (bark) |
| Chemistry
of Active Ingredients |
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|
 |
Name |
CAS# |
IUPAC Name |
Formula |
Structure |
 |
|
| Esculetin |
Not Available |
2,6-dihydroxychromen
-7-one |
C9H6O4 |
|
| Esculin |
97882-87-6 |
2-hydroxy-6-[3,4,5-t
rihydroxy-6-(hydroxy
methyl)oxan-2-yl]oxy
-chromen-7
-one |
C15H16O9 |
|
| Fraxin |
524-30-1 |
7-hydroxy-6-methoxy-
8-[(2S,3R,4S,5R,6R)-
3,4,5-trihydroxy-6-(
hydroxymet
hyl)oxan
-2-yl]oxy-chromen-2-
one |
C16H18O10 |
|
| Fraxetin |
574-84-5 |
7,8-dihydroxy-6-meth
oxy-chromen-2-one |
C10H8O5 |
|
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Pharmacology
| Medicinal Use |
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The bark is used in the treatment of apoplexy, hepatitis, bacterial diseases, diarrhea, dysentery, eye diseases such as cataracts, ophthalmia, cough and asthma. |
| Reference |
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 Jing-Nuan Wu. An Illustrated Chinese Materia Medica. P: 319, Oxford University Press, Inc.2005.
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