Thunberginol C
Thunberginol C exhibits antimicrobial activity against oral bacteria. It shows antiallergic activity in the in vitro bioassay using the Schults-Dale reaction in sensitized guinea pig bronchial muscle.
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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: service@chemfaces.com
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.
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Chem Pharm Bull (Tokyo). 1992 Dec;40(12):3352-4.
Thunberginols C, D, and E, new antiallergic and antimicrobial dihydroisocoumarins, and thunberginol G 3'-O-glucoside and (-)-hydrangenol 4'-O-glucoside, new dihydroisocoumarin glycosides, from Hydrangeae Dulcis Folium.[Pubmed:
1363465]
METHODS AND RESULTS:
New antiallergic and antimicrobial dihydroisocoumarins, thunberginols C, D, and E, were isolated from Hydrangeae Dulcis Folium, the fermented and dried leaves of Hydrangea macrophylla SERINGE var. thunbergii MAKINO, together with new dihydroisocoumarin glycosides, thunberginol G 3'-O-glucoside and (-)-hydrangenol 4'-O-glucoside. Their chemical structures have been determined on the basis of chemical and physicochemical evidence.
CONCLUSIONS:
Thunberginol C, D, E, G, and (-)-hydrangenol 4'-O-glucoside showed antiallergic activity in the in vitro bioassay using the Schults-Dale reaction in sensitized guinea pig bronchial muscle, and they also exhibited antimicrobial activity against oral bacteria.
Chem Pharm Bull (Tokyo). 1996 Aug;44(8):1440-7.
Development of bioactive functions in hydrangeae dulcis folium. V. On the antiallergic and antimicrobial principles of hydrangeae dulcis folium. (2). Thunberginols C, D, and E, thunberginol G 3'-O-glucoside, (-)-hydrangenol 4'-o-glucoside, and (+)-hydrang[Pubmed:
8795265]
METHODS AND RESULTS:
Following the characterization of thunberginols A, B, and F, six bioactive principles, Thunberginol C, D, and E, thunberginol G 3'-O-glucoside, (-)-hydrangenol 4'-O-glucoside, and (+)-hydrangenol 4'-O-glucoside, were isolated from Hydrangeae Dulcis Folium, the processed leaves of Hydrangea macrophylla SERINGE var. thunbergii MAKINO, together with four kaempferol and quercetin oligoglycosides. Their chemical structures have been determined on the basis of chemical and physicochemical evidence. Thunberginol C, D, E, and G and (-)-hydrangenol 4'-O-glucoside showed antiallergic activity in the in vitro bioassay using the Schultz-Dale reaction.
CONCLUSIONS:
These components also exhibited inhibitory activities on the histamine release from rat mast cells and on the histamine-induced contraction in isolated guinea pig tracheal chain. In addition, Thunberginol C, D, E, and G showed antimicrobial activities against oral bacteria.
J Asian Nat Prod Res. 2013 Nov;15(11):1163-7.
Two new C-methyl flavanones from the rhizomes and frond bases of Matteuccia struthiopteris.[Pubmed:
23944953]
METHODS AND RESULTS:
Two new C-methyl flavanones, (2S)-5,7-dihydroxy-6,8-dimethyl-4'-methoxydihydroflavone-7-O-(6″-O-acetyl)-β-d-glucopyranoside (1) and (2S)-5,7-dihydroxy-6,8-dimethyldihydroflavone-7-O-(6″-O-acetyl)-β-d-glucopyranoside (2), together with five known compounds, demethoxymatteucinol-7-O-β-d-glucopyranoside (3), matteucinol-7-O-β-d-glucopyranoside (4), 5,7-dihydroxy-6-methyl-4'-methoxydihydroflavone (5), methoxymatteucin (6), and Thunberginol C (7), were first isolated from the EtOH extract of the rhizomes and frond bases of Matteuccia struthiopteris.
CONCLUSIONS:
The structures were established by spectral analyses, mainly HR-ESI-MS and 1D and 2D NMR experiments (COSY, HSQC, and HMBC).
