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Home » Raw Herbs » Rhizome

Rheum emodi  Wall. ex Meissn.

   

Botanical Name

:

Rheum emodi Wall. ex Meissn.

English Name

:

Rhubarb

Synonym(s)

:

Rheum australe D. Don

Family

:

Polygonaceae

 

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.

Links

Herb Information

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
Product Categories

Name

CAS#

IUPAC Name

Formula

Structure

Product Categories
Anthraquinone 84-65-1 Anthracene-9,10-dion
e
C14H8O2 Click Here To Enlarge
Chrysophanic acid Not Available 1,8-dihydroxy-3-meth
yl-anthracene-9,10-d
ione
C15H10O4 Click Here To Enlarge
Emodin Not Available 1,3,8-trihydroxy-6-m
ethyl-anthracene-9,1
0-dione
C15H10O5 Click Here To Enlarge
Aloe-emodin 481-72-1 1,8-dihydroxy-3-(hyd
roxymethyl)anthracen
e-9,10-dione
C15H10O5 Click Here To Enlarge
Rhein Not Available 4,5-dihydroxy-9,10-d
ioxo-anthracene-2-ca
rboxylic acid
C15H8O6 Click Here To Enlarge
Physcion 521-61-9 1,8-dihydroxy-3-meth
oxy-6-methyl-anthrac
ene-9,10-dione
C16H12O5 Click Here To Enlarge
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 Click Here To Enlarge

Pharmacology

Medicinal Use

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.

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