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10-O-Methylprotosappanin B

CAS# 111830-77-4

10-O-Methylprotosappanin B

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Quality Control of 10-O-Methylprotosappanin B

Number of papers citing our products

Chemical structure

10-O-Methylprotosappanin B

3D structure

Chemical Properties of 10-O-Methylprotosappanin B

Cas No. 111830-77-4 SDF Download SDF
PubChem ID 124355840 Appearance Powder
Formula C17H18O6 M.Wt 318.3
Type of Compound Phenols Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
SMILES COC1=C(C=C2C(=C1)CC(COC3=C2C=CC(=C3)O)(CO)O)O
Standard InChIKey MPBIWBGTEYMVRN-KRWDZBQOSA-N
Standard InChI InChI=1S/C17H18O6/c1-22-16-4-10-7-17(21,8-18)9-23-15-5-11(19)2-3-12(15)13(10)6-14(16)20/h2-6,18-21H,7-9H2,1H3/t17-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Source of 10-O-Methylprotosappanin B

The dried heartwood of Caesalpinia sappan L.

Biological Activity of 10-O-Methylprotosappanin B

DescriptionStandard reference

Protocol of 10-O-Methylprotosappanin B

Structure Identification
Chem. Pharm. Bull.,1987,35(9):3615-9.

Homoisoflavonoids and Related Compounds. V.1) A Novel Dibenzoxocin Derivative from Caesalpinia sappan L[Reference: WebLink]

We have been further studying the isolation, absolute stereochemistries and biosyntheses of the phenolic constituents of C. sappan and C. japonica.
METHODS AND RESULTS:
In the present paper,we report the isolation and structural elucidation of a novel dibenzoxocin derivative,10-O-Methylprotosappanin B(1), from Sappan Lignum.10-O-Methylprotosappanin B (1) was obtained by repeated silica gel and Sephadex LH-20 column chromatography, and preparative thin-layer chromatography (PTLC) of the remaining fractions after separation of the previously reported compounds.4) The isolation of the intact compound was so difficult that only a limited amount could be obtained. However, a satisfactory amount was obtained in the form of an isopropylidene derivative (6) from the methanolic extract separated after treatment with acetone in the presence of an acid catalyst, as described in the previous paper.4c) The remaining fractions after isolation of the isopropylidene derivatives of 3,4-dihydroxy homoisoflavans4c) were subjected to column chromatography on silica gel and Sephadex LH-20 to yield 6, together with the isopropylidene derivative of protosappanin B (7). On acid hydrolysis with 60% AcOH, compound 6 was readily transformed into 1.

10-O-Methylprotosappanin B Dilution Calculator

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Preparing Stock Solutions of 10-O-Methylprotosappanin B

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.1417 mL 15.7085 mL 31.4169 mL 62.8338 mL 78.5423 mL
5 mM 0.6283 mL 3.1417 mL 6.2834 mL 12.5668 mL 15.7085 mL
10 mM 0.3142 mL 1.5708 mL 3.1417 mL 6.2834 mL 7.8542 mL
50 mM 0.0628 mL 0.3142 mL 0.6283 mL 1.2567 mL 1.5708 mL
100 mM 0.0314 mL 0.1571 mL 0.3142 mL 0.6283 mL 0.7854 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on 10-O-Methylprotosappanin B

Homoisoflavonoids and Related Compounds. V.1) A Novel Dibenzoxocin Derivative from Caesalpinia sappan L

Chem. Pharm. Bull.,1987,35(9):3615-9.

We have been further studying the isolation, absolute stereochemistries and biosyntheses of the phenolic constituents of C. sappan and C. japonica. In the present paper,we report the isolation and structural elucidation of a novel dibenzoxocin derivative,10-O-Methylprotosappanin B(1), from Sappan Lignum.10-O-Methylprotosappanin B (1) was obtained by repeated silica gel and Sephadex LH-20 column chromatography, and preparative thin-layer chromatography (PTLC) of the remaining fractions after separation of the previously reported compounds.4) The isolation of the intact compound was so difficult that only a limited amount could be obtained. However, a satisfactory amount was obtained in the form of an isopropylidene derivative (6) from the methanolic extract separated after treatment with acetone in the presence of an acid catalyst, as described in the previous paper.4c) The remaining fractions after isolation of the isopropylidene derivatives of 3,4-dihydroxy homoisoflavans4c) were subjected to column chromatography on silica gel and Sephadex LH-20 to yield 6, together with the isopropylidene derivative of protosappanin B (7). On acid hydrolysis with 60% AcOH, compound 6 was readily transformed into 1

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