What is Uncaria rhynchophylla?

Uncaria rhynchophylla (or Gouteng in Chinese), UNCARIAE RAMULUS CUM UNCIS), is an essential Chinese herbal material with a long history. 

Uncaria rhynchophylla ethanol-extracted powder, which preserves the Chinese herb’s properties, is also widely used in dietary supplements.

• Its harvest in autumn and winter, remove leaves, cut and dry.
• Parts used: dried stems and branches with hooks.
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• Research shows that the total alkaloid content of different parts of Uncaria rhynchophylla varies. 

• For example, the underground skin is 0.65%, the epidermis is 0.30%, the hook is 0.28%, the young branches and leaves are 0.18%, and the xylem is 0.022% to 0.04%.

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• Uncaria rhynchophylla VS Uncaria tomentosa (Cat’s Claw)

• Uncaria rhynchophylla and Uncaria tomentosa are both common species of the family of Rubiaceae, and what’s the difference between them?

• Product name	Uncaria rhynchophylla	Uncaria tomentosa
  Synonym	Gou Teng	Cat’s Claw,uña de gato
  Origin place	China Guangxi, Jiangxi, Hunan, Zhejiang, Guangdong, Sichuan, Yunnan, etc.	South and Central America, Peru, etc
  Common species	Uncaria rhynchophylla,Uncaria macrophylla,Uncaria sinensis, Uncaria sessilifrudus,etc	Uncaria. tomentosa and Uncaria. guianensis
  Part used	Dried stem, branch & hooks	Vine bark, root
  Standardized Extract	1%-10%Uncaria total alkaloids	3% alkaloids and 15% phenols

• Uncaria rhynchophylla Extract total alkaloids

• It was reported that the active pharmacological component was the alkaloids of Uncaria rhynchophyllina, reprententive are rhynchophylline and isorhynchophylline.

  Uncaria rhynchophylla chemical constituents include:

• Alkaloids: rhynchophylline, isorhynchophylline, corynoxeine,isocorynoxeine, corynoxine,corynoxine B, etc.
• Flavonoids: hypericin, etc.
• Others: mitragynin, isomitragynin, etc.

Rhyncholphylline, its cas# is 76-66-4, while the CAS number of Isorhynchophylline is 6859-01-4.

Where to buy Uncaria rhynchophylla Extract

Alex@idobio.com