Neochamaejasmine B

Neochamaejasmine B
Product Name Neochamaejasmine B
CAS No.: 90411-12-4
Catalog No.: CFN92152
Molecular Formula: C30H22O10
Molecular Weight: 542.5 g/mol
Purity: >=98%
Type of Compound: Flavonoids
Physical Desc.: Powder
Targets: Antifection
Source: The roots of Stellera chamaejasme Linn.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price: $418/5mg
Neochamaejasmine B displays nematicidal activity against both Bursaphelenchus xylophilus and Bursaphelenchus mucronatus. It can reduce seedling growth and disrupt root development, the IC50 value of 6.9 ug/mL . Neochamaejasmine B has antibacterial activity on Gram-positive bacterium and Gram-negative bacterium.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to:

The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
  • Chung Shan Medical University2020, US20200323790A1
  • Food Funct.2020, 10.1039
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  • Evid Based Complement Alternat Med.2017, 2017:1401279
  • Mol Immunol. 2016, 78:121-132
  • Pharmacognosy Journal2019, 11,6:1235-1241
  • Plants (Basel).2020, 9(11):1535.
  • Acta Physiologiae Plantarum2016, 38:7
  • BMC Complement Altern Med.2016, 16:213
  • Journal of Functional Foods2019, 52:430-441
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    Allelopathy, the negative effect on plants of chemicals released to the surroundings by a neighboring plant, is an important factor which contributes to the spread of some weeds in plant communities.
    In this field, Stellera chamaejasme L. (Thymelaeaceae) is one of the most toxic and ecologically-threatening weeds in some of the grasslands of north and west China. Bioassay-guided fractionation of root extracts of this plant led to the isolation of eight flavonoids 1-8, whose structures were elucidated by spectroscopic analysis. All compounds obtained, except 7-methoxylneochaejasmin A (4) and (+)-epiafzelechin (5), showed strong phytotoxic activity against Arabidopsis thaliana seedlings. Seedling growth was reduced by neochamaejasmin B (Neochamaejasmine B,1), mesoneochamaejasmin A (2), chamaejasmenin C (3), genkwanol A (6), daphnodorin B (7) and dihydrodaphnodorin B (8) with IC50 values of 6.9, 12.1, 43.2, 74.8, 7.1 and 27.3ug/mL, respectively, and all of these compounds disrupted root development.
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