|Source:||The barks of Magnolia officinalis|
|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||3.9324 mL||19.6618 mL||39.3236 mL||78.6473 mL||98.3091 mL|
|5 mM||0.7865 mL||3.9324 mL||7.8647 mL||15.7295 mL||19.6618 mL|
|10 mM||0.3932 mL||1.9662 mL||3.9324 mL||7.8647 mL||9.8309 mL|
|50 mM||0.0786 mL||0.3932 mL||0.7865 mL||1.5729 mL||1.9662 mL|
|100 mM||0.0393 mL||0.1966 mL||0.3932 mL||0.7865 mL||0.9831 mL|
Planta Medica, 2011 , 77 (12):PG42.
|New biphenyl derivatives and anti-inflammatory constituents from the stem bark of Magnolia officinalis[Reference: WebLink]|
|The stem bark of Magnolia officinalis Rehd. et Wils. (Magnoliaceae) has been used as a traditional medicine for the treatment of gastrointestinal disorders, bronchitis, and emphysema, in China, Taiwan, Japan, and Korea . Chemical studies have revealed a variety of neo-lignans and alkaloids as constituents of this plant. Many of these compounds exhibit central depressant effect, muscle relaxation, and antigastric ulcer, antibacterial, antiallergic, vasorelaxant, and neurotrophic activities. Investigation on EtOAc-soluble fraction of the stem bark of M. officinalis has led to the isolation of three new biphenyls, 5-allyl-5'-(1-hydroxyallyloxy)biphenyl-2,2-diol (1), 5,5'-diallyl-2'-(allyloxy)biphenyl-2-ol (2), and 5,5'-diallyl-2'-(3-methylbut-2-enyloxy)biphenyl-2-ol (3), together with 12 known compounds, including four neolignans, magnolol (4), honokiol (5), (-)-monoterpenylmagnolol (6), and randainal (7), two norlignans, Magnaldehyde D (8) and randaiol (9), and six steroids, β-sitostenone (10), stigmasta-4,22-dien-3-one (11), β-sitosterol (12), stigmasterol (13), 3β-hydroxystigmast-5-en-7-one (14), and 3β-hydroxystigmasta-5,22-dien-7-one (15). The structure of new compounds (1-3) were determined through spectroscopic and MS analyses. Among the isolates, magnolol (4) and honokiol (5) exhibited potent inhibition against fMLP-induced superoxide production with IC50 values of 4.42±0.24 and 0.68±0.20μg/mL, respectively. In addition, magnolol (4) inhibited fMLP/CB-induced elastase release with an IC50 values of 1.45±0.20μg/mL.|
Magn Reson Chem. 2008 May;46(5):497-500.
|1H and 13C NMR assignments for two lignans from the heartwood of Streblus asper.[Pubmed: 18297743 ]|
|In our ongoing investigation of the bioactive constituents from plants, two new lignans, magnolignan A-2-O-beta-D-glucopyranoside and strebluslignanol were isolated from heartwood of Streblus asper, along with three known lignans, magnolignan A, magnolol, and Magnaldehyde D. 1D and 2D NMR experiments, including COSY, HMQC, and HMBC, and other spectroscopic methods, including UV, IR, and MS were used for the determination of the structures and NMR assignments. Primary bioassays showed that magnolignan A-2-O-beta-D-glucopyranoside and strebluslignanol have medium cytotoxic activity against HEp-2 and HepG2 cells, with IC(50) of 13.3 microM, 46.4 microM and 10.1 microM, 21.7 microM, respectively.|