|Source:||The roots of Panax notoginseng (Burk.) F.H.Chen|
|Biological Activity or Inhibitors:|| 1. Dencichine is a haemostatic agent present , it is also a reported neurotoxic agent found in Lathyrus sativus (grass pea seed).
|Solvent:||Pyridine, Methanol, Ethanol, etc.|
|Storage:||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: email@example.com
|After receiving:||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.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||5.6776 mL||28.3881 mL||56.7762 mL||113.5525 mL||141.9406 mL|
|5 mM||1.1355 mL||5.6776 mL||11.3552 mL||22.7105 mL||28.3881 mL|
|10 mM||0.5678 mL||2.8388 mL||5.6776 mL||11.3552 mL||14.1941 mL|
|50 mM||0.1136 mL||0.5678 mL||1.1355 mL||2.271 mL||2.8388 mL|
|100 mM||0.0568 mL||0.2839 mL||0.5678 mL||1.1355 mL||1.4194 mL|
Rapid Commun.Mass Sp. 2005, 19(10):1237-44.
|Hydrophilic interaction liquid chromatography with tandem mass spectrometry for the determination of underivatized dencichine (beta-N-oxalyl-L-alpha,beta-diaminopropionic acid) in Panax medicinal plant species.[Pubmed: 15838924 ]|
|Dencichine (Dencichin,beta-N-oxalyl-L-alpha,beta-diaminopropionic acid) is a haemostatic agent present in important Chinese medicinal herbs such as Panax notoginseng, as well as other Panax species. It is also a reported neurotoxic agent found in Lathyrus sativus (grass pea seed). A selective analytical method incorporating hydrophilic interaction chromatography with positive electrospray ionization tandem mass spectrometry (HILIC/ESI-MS/MS), for the analysis of Dencichine in Panax plant species, was developed. Using multiple reaction monitoring (MRM) mode, underivatized Dencichine, a small and highly polar compound, was selectively detected and quantified. The contents of Dencichine in raw and steamed Panax notoginseng roots, 11 pairs of raw and steamed P. notoginseng herbal products, Panax ginseng roots, and Panax quinquefolium roots, were analyzed and compared. Optimal sensitivity of 0.3 ppm (detection limit) and 1.5 ppm (quantification limit) was achieved. The method was rapid (< or =5 min), with the HILIC peak eluting at about 1 min. Steamed P. notoginseng samples were found to contain less Dencichine than the corresponding raw samples, and there were also differences among the three Panax species; raw P. ginseng and P. quinquefolium contained less Dencichine than the raw P. notoginseng species. This rapid and specific method may be applied to the quantification of Dencichine in complex medicinal plants and their products.|