Rheum emodi Wall. ex Meissn. |
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|
|
Botanical Name |
: |
Rheum emodi Wall. ex Meissn. |
English
Name |
: |
Rhubarb |
Synonym(s) |
: |
Rheum australe D. Don |
Family |
: |
Polygonaceae |
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General Info
| Description |
 |
|
A stout herb, 1.5-3.0 m in height. Roots very stout; radical leaves long-petioled, very large, often 60 cm in diam., orbicular or broadly ovate, cordate; petioles 30-45 cm. long; flowers small, dark-purple or pale-red, in tall, axillary panicles. |
| Herb Effects |
|
|
Pungent and bitter, increases secretion and discharge of urine, purgative, astringent. |
Chemistry
| Active Ingredients |
|
|
Anthraquinone, chrysophanic acid (=chrysophanol), emodin, aloe-emodin, rhein & physcion, with their O-glycosides such as glucorhein, chrysophanein, glucoemodin; sennosides A-E, reidin C & others |
| Chemistry
of Active Ingredients |
|
|
|
 |
Name |
CAS# |
IUPAC Name |
Formula |
Structure |
 |
|
| Anthraquinone |
84-65-1 |
Anthracene-9,10-dion
e |
C14H8O2 |
|
| Chrysophanic acid |
Not Available |
1,8-dihydroxy-3-meth
yl-anthracene-9,10-d
ione |
C15H10O4 |
|
| Emodin |
Not Available |
1,3,8-trihydroxy-6-m
ethyl-anthracene-9,1
0-dione |
C15H10O5 |
|
| Aloe-emodin |
481-72-1 |
1,8-dihydroxy-3-(hyd
roxymethyl)anthracen
e-9,10-dione |
C15H10O5 |
|
| Rhein |
Not Available |
4,5-dihydroxy-9,10-d
ioxo-anthracene-2-ca
rboxylic acid |
C15H8O6 |
|
| Physcion |
521-61-9 |
1,8-dihydroxy-3-meth
oxy-6-methyl-anthrac
ene-9,10-dione |
C16H12O5 |
|
| Chrysophanein |
Not Available |
2-hydroxy-3-methyl-1
-[(2S,3R,4S,5R,6R)-3
,4,5-trihydroxy-6-(h
ydroxymeth
yl)oxan-
2-yl]oxy-anthracene-
9,10-dione |
C21H20O9 |
|
|
Pharmacology
| Medicinal Use |
|
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Constipation, diarrhoea, children's ailments, poison ivy, biliousness, lumbage, agitated mind, sore eyes, piles, chronic bronchitis, chronic fever, asthma and coryza, pains and bruises. |
| Contraindication |
|
|
Contraindicated for patients suffering from gout, rheumatism, epilepsy, and uric acid
troubles. |
Dealers
Products
|
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Health Remedies 
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