|Source:||The barks of Picrasma quassioides (D.Don) Benn|
|Biological Activity or Inhibitors:|| 1. 9,10-Dimethoxycanthin-6-one shows cytotoxic activity against a HT-1080 human fibrosarcoma cell line( IC50 = 5.0 microM).
|Solvent:||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, 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||3.5676 mL||17.838 mL||35.6761 mL||71.3521 mL||89.1902 mL|
|5 mM||0.7135 mL||3.5676 mL||7.1352 mL||14.2704 mL||17.838 mL|
|10 mM||0.3568 mL||1.7838 mL||3.5676 mL||7.1352 mL||8.919 mL|
|50 mM||0.0714 mL||0.3568 mL||0.7135 mL||1.427 mL||1.7838 mL|
|100 mM||0.0357 mL||0.1784 mL||0.3568 mL||0.7135 mL||0.8919 mL|
Nat. Prod. Commun., 2010, 5(1):17-22.
|Canthin-6-one alkaloids and a tirucallanoid from Eurycoma longifolia and their cytotoxic activity against a human HT-1080 fibrosarcoma cell line.[Pubmed: 20184012]|
|Phytochemical investigation of the stems of Eurycoma longifolia Jack led to the isolation of two new canthin-6-one alkaloids, 4,9-dimethoxycanthin-6-one (1) and 10-hydroxy-11-methoxycanthin-6-one (2), and a new tirucallane-type triterpenoid, 23,24,25-trihydroxytirucall-7-en-3,6-dione (3), along with 37 known compounds. Among these, an oxasqualenoid (4) was isolated as a natural product for the first time. The structures of the isolates were elucidated by spectroscopic and mass spectrometric means. All the isolates were evaluated for their cytotoxic activity against a HT-1080 human fibrosarcoma cell line. Among them, 9,10-Dimethoxycanthin-6-one (14, IC50 = 5.0 microM), 10-hydroxy-9-methoxycanthin-6-one (15, IC50 = 7.2 microM), dihydroniloticin (18, IC50 = 8.2 microM), and 14-deacetyleurylene (34, IC50 = 3.2 microM) displayed stronger activity than the positive control 5-FU (IC50 = 9.2 microM).|